1. If you disappoint a woman, you must communicate with her and re-establish trust. Women are emotional, and when they are disappointed in you, they will feel particularly uneasy. At this time, even if your attitude and behavior towards her become better, you are unlikely to want her to change her mind again. Because they are very concerned about whether you sincerely apologize or not, and whether you are willing to correct your attitude, they really want you to tell them orally instead of doing it directly. Doing it directly will only make her think that you are a little abnormal. 2. After telling her the reason why you let him down and promising to mend it, you must keep your word. Can't cheat, can't fake. The trust between two people is based on the sincerity of both sides. If she is willing to forgive you, it means that she still loves you and you want to start over with her, then you must impress him with your own practical actions. It's easy for women to forgive you. As long as she sees your behavior and is really willing to make up for it and make due changes for him, he will forgive you. 3. Pay more attention to his family, in normal life. Be good not only to her, but also to her family. Because women are a group, a woman can only think that you are as good to her family. He will think that you really want to get along with her all the time, and that you will live a lifetime until you get married. Naturally, she won't always argue with you about trifles. Do this, I believe you can save her.