So about my ex....

So i broke up with my boyfriend because I couldn’t handle the lies,the excessive drinking and drugs he did. He didn’t want me to leave him saying that I should “stick by him cause he’s in a bad place” basically wanted me to fix him. Anyway after not speaking to him for awhile he sends me a text saying he’s checking into rehab and that he still has feelings for me. The problem is I just don’t feel the same anymore. I know if he gets help and stays sober he can be the amazing man i know that he is. Although, i feel like our rough past is preventing me from seeing that. I can see he’s making an effort to change and of course would love to have him but I’m afraid he’ll relapse and then I’ll be stuck again.