My ex-girlfriend had a new boyfriend, and at first she laughed at me, which made me feel a little uncomfortable.

Why bother? Now that she said that, it means that she doesn't want to continue, and she doesn't want to continue to be sad because of the past like you. She's over it, so why are you so persistent? She did that because she wanted to forget the past and hope not to live in the shadow of the past now, so her attitude towards you has changed so much, or something has made her see what kind of boy she really needs. She spoke ill of you and laughed at you. This is who she is now. You love your first love at that time, not her now. After you loved her, you buried it in your heart. Even if you regret what you did, don't lose your way now. You feel bad because you feel a little guilty. Because she has a new boyfriend, you feel that you have lost something, but she has changed. She didn't love her then, so you don't have to worry about how she treats you now. If you are nostalgic, you can recall your past. Aren't you distracted at work? Then concentrate on your work and forget it after a long time. If she laughs at you, let him laugh. No big deal. If you say such modesty, it is because you still love her. Since she treats her as a laughing stock, what are you depressed about? She doesn't care how you feel. Why do you care what she thinks of you? It's 20 12. Is there anything else you can't open?