After breaking up with my ex-girlfriend, I found out that she had fallen because of me. Now you don't want to waste your time on me?
Because you broke up with her, she hates you, and her fall has nothing to do with you. But the most important thing is her own responsibility. If a person is self-motivated and encounters great difficulties, don't let himself go downhill. Help him if you can. Pull her out of the abyss. But if she doesn't accept it all the time, you don't have to be sad. That's her choice. Do your best.