First, read the English article below.

The first thing you need to do is give the girl some space. If you start knocking down her door and calling her every five minutes she'll only pull further away from you. The amount of space and time you give her depends on what happened when you tried to date her. If you ended a serious relationship, you'll need to give her more space than you would if you had just dated a few times.  Don't call her, chat with her at parties, or email her just to see how she's doing. If you see her socially, be polite and say hi, but make it clear that you're not going to bother her. Just don't give her too much space. If you leave her alone for a few months, that will give her plenty of time to find someone new. Not only should you give her some space, but you should give yourself some space to reflect and think about what went wrong in the relationship. Take the time to sit down and ask what you did to make her not want you; were you too attentive, too moody, or too distant? Whatever you did, you have to make sure never to do it again if you want a moment of her day.  Write down the things that went wrong. Consider what you can do to improve this kind of behavior. Don't date anyone else during the reflection period. Focus on self-improvement and working on not repeating the same mistakes. Don't pursue her until you've figured out what went wrong and know how to change it. Though you should avoid getting busy in the bedroom while you're trying to win your girl back, you should try to live a busy and active life so you can work on being independent and pursuing your interests. If you're just sitting around waiting for enough time to pass to start trying to hang out with her again, she'll know.  Continue pursuing your hobbies and interests. Don't stop doing all of the things you love because your heart is aching. Spend time with your friends. They'll cheer you up and lend you a fresh perspective. Work out. Your self-esteem will improve if you exercise a few times a week, and all the better if she sees you out running. Once... 

Now, please write a short abstract for it in Vietnamese. Abstract:
Cho cô ấy không gian riêng. Tự dành thời gian để suy ngẫm. Trở nên bận rộn. Cho cô ấy thấy bạn đang sống rất vui. Khiến cô ấy ghen (không bắt buộc).