It’s my fault

He treated me like a queen during the relationship, he seemed so genuine that it was impossible to think he was lying. I found out that he had a past where he went from woman to woman to have sex with them and that's it (he even paid prostitutes) I discovered that he work in illegal things (although I didn't know exactly what) But I still believed in his "you made me change" despite everything, despite the fact that with other people he seemed like someone without empathy, I knew it but I was already very emotionally involved and I didn't want to leave him because "what if he really changed with me?" until after he broke up with me without telling me anything, until after the relationship he treated me without empathy and horribly there I just said, it's my fault, I stayed in the lion's den believing that he changed and loved me. I surrendered and begged a man who had no empathy for me or anyone else. A man who only had me as a whim. a man with ego and selfishness just because I believed he changed with me. And he treated me like im nothing after breakup. But he was too sweet and different in the relationship. And know in destroyed.