Obviously, your ex-girlfriend was very unhappy with the relationship, or she wouldn’t have dumped you. Also, it is very likely that she still has deep feelings for you, because love cannot be simply turned off. Your ex didn’t just decide that she didn’t want to love you anymore and then she left. He must find out what his reasons were, fix the problems, and then try to win his ex-girlfriend back.
Give it some thought and try to remember what you regularly complained about. It doesn’t matter if the problems were big or small, something has to be done about it. If the little problems kept repeating themselves, that would have been enough to drive your ex away from you.
Ignoring her complaints about what you were doing that was making her unhappy, gave her the impression that you didn’t care much about her feelings. However, her feelings are important, and since you didn’t respect them, you made her leave you. Fix all the bugs that were bugging her and you will have a good chance of getting her ex-girlfriend back.
However, in the meantime, don’t even try to contact her. She is still too mad at you and will probably ignore your calls and messages anyway. She just leaves her all alone to get over her anger. Once her emotions have calmed down, she will be much more approachable.
Focus all of your time and energy on finding out what mistakes you made, and then do your best and make the effort to correct them. If your girlfriend often complained that you were careless, then do something about it. Buy new clothes and get ready; Looking good will also give you a good chance of winning your ex girlfriend back.
If some of the mistakes you’ve made cannot be physically corrected, then resolve never to make them again. If they make her unhappy, then it’s worth stopping. She will only be willing to stay in a relationship with you if she is happy.
So, to get your ex girlfriend back, you need to fix the problems she has caused, look good, and make her happiness your top priority. If your girlfriend is happy, you will be happy and your relationship will prosper.