I broke up with him, now what?

I know where you're coming from. Best thing to do if he does try and talk to you, give him one-word replies. such as "yup, mhm, okay, cool, alright." He will feel bad, but that's what he gets for manipulating you. I personally wouldn't like to talk to an ex, especially if he did that to me. Don't get into full conversation with him, but leave it at something simple then just stop talking. I expect he is going to try and apologize, and tell you he loves you and how much you mean to him. Ignore it, he's only saying it out of guilt. Hope I helped! :)