Four Parts:
Make Her Feel Special 
Be Someone She Can Trust 
Be Willing To Compromise 
Understand her needs
It's one thing to get a girl to go out with you long-term, but it's another thing altogether to keep her happy. Sometimes, you may have a hard time figuring out what she wants, or you may get lazy and forget to show her that you love her. Although relationships do take work, you'll find that the rewards are worth it. Follow the tips in this article to keep your girlfriend happy.
Part 1 : Make Her Feel Special
(1) Treat her like a princess. Open doors for her, offer her your jacket, pull her chair out for her and stand up when she enters the room. She'll love these little gestures. When you take her on dates, never make her pay or split the bill. Girls love it when a guy takes care of the dinner bill like it's no big deal. But don't force her to be helped if she doesn't like it.
(2) Compliment her. Tell her she is beautiful, especially when she least expects it. Girls can spend a lot of effort trying to look nice, and it will make her happy that you noticed.
Make your compliments meaningful and truthful. Instead of "Your hair is pretty," try "I really like the way you did your hair tonight! It looks so soft and beautiful." Use different expressions, that show that you are thoughtful.
Don't be ashamed to compliment her or show her affection in front of others
(3) Pay attention to her. After you've been together for a while, you can easily fall into a pattern of forgetting to make her feel special. Some guys also deliberately ignore their girlfriends as a way of getting back at them or as a way of punishing them.
Let her know you're thinking about her. For example, send her a text when you're thinking about her. Just be sure not to text anything you might not want her friends or family to read. Try texting her "good morning" with a short encouragement as often as possible. A girl loves to know she's the first thing on her boyfriend's mind when he starts his day.
Never ignore her as a way of being manipulative. You'll hurt her immensely, and if you ignore her often enough, she may dump you. Don't leave her waiting for you to call or talk to her.
(4) Be spontaneous. Surprise her with flowers or notes, if she likes such things. Whisk her away for an unplanned romantic dinner, day or weekend.
Take her somewhere new.
Make sure you plan anything on a free night/day/weekend when you know she has things to do.
If you can, surprise her with a love song or a short poem. Or if you find one that really talks about your feelings, send it or a link to it for her to share
(5) Return her calls and texts. Unless she specifies that you don't need to call her back, you need to be responsive when your girlfriend calls you. Let her know she's on your mind even though you are not with her in person. Girls can get insecure when ignored. A confident girl is a happy girl, and a happy girl is good to her boyfriend.
(6) Surprise her with gifts. Even a small gift, like her favorite candy bar, goes a long way. Listen when she tells you about things she wants, and surprise her from time to time by getting her something special. But don't try to "buy her" with luxury.
Don't buy gifts at the last minute. Invest some time, and put some thought into it. What does she like? Music? Scarves? Delicate bracelets? A special perfume? .......
Never forget important holidays or anniversaries that matter to both of you. Listen to hints she may be dropping about what she wants.
Get her something she can wear every day to remind her how much you care about her.
If she gets you a gift for a holiday and you don't get her one in return, she's probably going to be bummed (even if she doesn't admit it)
A gift can reflect how you regard her, and how much you appreciate her. That you are ready to make sacrifices for her.
Avoid repeating gifts, unless it has a special significance, like on a day of remembrance. Also, if she finds out that you gave the same thing to another girlfriend, she can dislike the gift.
(7) Make her laugh. Use humor in a natural way. You don't have to tell corny jokes at every opportunity unless she likes that sort of thing. Know what kind of humor she likes. When she's upset, try to cheer her up with some humor. If she laughs at something, try to understand and share the laughter. Show that you like her jokes and funny remarks
(8) Respect her. Remember that your girlfriend is not your "property." Be mindful of her opinions and desires, even if they differ from your own. Don't make her feel stupid just because she doesn't agree with you about everything. Being with a copy of oneself is very boring, and minor disagreements give better perspective on things in life. One may win a discussion but lose her affection instead.
Part 2 : Be Someone She Can Trust
(1) Keep your promises and be responsible
Be punctual, maximum 10 minutes late ever, and make it a priority to keep your word to her and also to other people. A woman that sees that her man cannot keep his word, regards him not safe enough for a serious relationship.
Show responsibility with studies, work and money. That signals that you possibly also could take responsibility for a family in the future.
(2) Be sensitive when you talk about female friends. If you have female friends that you would like your girlfriend to befriend or if you want her to trust you in your friendships with other women, never compliment your female friends' physical attributes.
If you have something positive to say about a female friend, say something about her personality, as in, that she is warm, friendly or creative.
Understand that your girlfriend may be suspicious of your female friends at first. Always uplift your girlfriend so that knows that she is the only one in the world that you have eyes for.
(3) Tell the truth about important issues but know when little white lies are appropriate. Major lies will drive a wedge of suspicion and mistrust between you and your girlfriend that you may never be able to fix. You may throw away a whole relationship with just one act of mistrust.
Show her you're trustworthy by your actions. Conversations you have with other women should never border the line of being flirtatious or intimate. She needs to know that she can trust you in speech and conduct even in the little things.
When you are in a relationship, never tell her that another woman is prettier than she is. If she asks you whether another girl is more attractive than she is, then your default answer should always be a resounding "NO!"
Never talk about how you find some celebrity really gorgeous. Doing this will only make her feel bad about herself, and she will resent you for it.
(4) Confide in her. Open up to her in a way that you don't do for most people. When you show her that you trust her, she's more likely to trust you back. Keep her secrets when she does the same for you. You can show your girlfriend a side of you that you don't normally share with your buddies. Don't tell others about private things that could upset her if she would find out about it - protect her dignity.
(5) Have good online and phone etiquette. When you’re in a relationship, make sure that you say so on your Facebook account. Be proud of her so that she'll feel confident in you. Show before your family and good friends that you are serious about her, that she will not fear that you might be seeing other girls.
If someone hits on you online, tell your girlfriend right away. If you keep a secret from her, and if she is already insecure, then hiding your secret will make her insecurity worse.
Avoid communicating with other girls over e-mail, text or social networks without letting your girlfriend know what you're doing.
(6) Defend her in front of other people. If someone is teasing her, take her side. Girls need to know that their men have their backs at all times, it is an age-old need. How would you feel if she took her friends' or your friends' side over yours? Let her know she can depend on you to stick up for her. In the long run, it is often the man needing the most support in life, so it is wise to show your readiness to "take any bullet for her". A man's bright career is easily ruined if his woman doesn't support him.
Part 3 : Be Willing To Compromise
(1) Make an effort to get along with her friends and family. If her friends and family don't like you, then they may eventually convince her that you're not good for her. Always act like a gentleman around her friends and family so that they'll encourage her to keep going out with you. You may not like them as much as she does, but you should make an effort to be nice because you care about her. Remember the names and some details about people important to her.
(2) Balance your time spent with friends and with her. Never make her feel like you'd rather be with your friends than be with her. At the same time, you need to have friendships with other people besides your girlfriend. Show that you have happiness and a social life also not all depending on her, that you are strong enough to be her support. Just make sure you strike a balance.
(3) Don't take her for granted. Keep in mind that she could leave you, so you'd better work hard at keeping her happy so that you can keep her as your girlfriend. Make sure that she feels that she loses something great, if she would lose you. If you want to keep her, it's time to start treating her like a gentleman should. Don't expect a great girl to be available again...
Don't put your hobbies, video games, YouTube, music or other things you like before her.
When she goes on a date with you, she doesn't go there so that you can play games on your iPhone and text your buddies. If you do things like that, she'll think you're rude and that you don't want to spend time with her, as any other person would think. After all, you can do that stuff as much as you'd like when she's not around.
(4) Give each other space. Don't smother your girlfriend. You want her to be excited each time she sees or hears from you. If you smother her, she may become overwhelmed, which could ruin a good relationship. There is time for everything, and if one feels that time for studies, work, hobbies or sleep is wasted for little things, it can become a reason of strain instead of joy. Help each other to be efficient, to spend relaxed quality time together whenever possible.
(5) Be willing to change. If she mentions something you do that bothers her, change your behavior gladly.
Girls will only take so much hurt in a relationship. If you are constantly hurting her, then you're going to lose her.
You shouldn't change who you are, but when it comes to minor issues, relationships require compromise from both ends. She should be willing to do the same for you. Both should be equally content at the end of the day, but sometimes you must take the first step.
(6) Be sensitive to your girlfriend/date.
A woman may feel belittled if the man does too much, and doesn't give her the space to be in the leading position at times, like paying for a meal, or helping the man. Some women will feel humiliated if they cannot invite at every second or third date, especially in cultures with improved gender equality. If they have an income, they also may want to show ability not to be a free rider, needing a man for their own welfare. It should all be about love, not mere benefits. Balance in all, with certain mutuality, gives chances for a healthy relationship. Attention to the other's emotions is more important than rigid gender roles.
Part 4 : Understand Her Needs
Don't be predictable or treat your girl as predictable, but read her emotions and make nice surprises.
Each person has a unique set of love languages, things that can touch their heart that they feel loved and cherished, while other expressions perhaps don't excite at all. The most common are probably: kind affirming words (not pure flattering), time priority, actions of service, gifts, physical touch, really understanding the other, remembering details once told, and showing no regard to obvious faults. E.g. a flower can for a lady mean as much as a home-cooked meal means to a typical man, and as little vice versa. Explain your own love language too, that she will not feel bad if she does things with a kind intention that don't make you excited.
Kind massage is however a trump card, few people dislike it - if the situation is appropriate - perhaps starting with the feet is less intimidating, and a pure gesture of thoughtfulness without erotic associations.
Girls know that guys can "show love" in order to get sex, and will feel used and cheap if that is perceived. If she feels disrespected once, it can create fear in her heart, that it will happen again. Never think that "sex" is at all the same as "making love" to a woman - make sure it will be for HER. Show love to make her feel fulfilled, and sooner or later she cannot resist, but wants to show love in her own way, which a guy really understands...
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