Why do some men try to get in touch with the women they have done so wrong?

About 2 years ago I dealt with this guy right. We were together for 9 months. In the beginning he love bombed me heavily and I fell for it until his true colors came out. He turned out ti be really insecure, controlling, and demanding. He hurt me so bad using me for money and body. I ended up leaving eventually. He contacted me 2 years later saying he just wanted to apologize for how he treated me and wants me to continue doing good. I broke down because he hurt me so bad but I don’t think he means it at all. Does he just think I’m weak and will get back with him?
Why do some men try to get in touch with the women they have done so wrong?
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