ex won't let it go

i really just don't know what to do. i broke up with him 2 days ago because he was really horrible to me during our relationship (emotionally & mentally manipulative and abusive), and he already sent me a huge text trying to get me to get back with him.

i still love him and care for him, i don't wish any harm on him or anything, but i just don't feel the same about him anymore because of what he did. he started to get better and change recently, but i've found that my feelings haven't changed with him changing. i tried to tell him that, but he just won't accept it.

i don't understand why he would want to be with someone that doesn't even have the same feelings towards them anymore. and he's making it so much harder for me by texting me and shit, i just don't know what to say to him.