I recently moved back to a city where I used to live. I'm trying to get my life back together and everything was going great until I ran into one of my ex's. He came up to me and talked to me until bar close (he works there and I was dragged there reluctantly by my horny friend). He said that he was sorry for the way things happened and that we should hang out sometime. I told him that I would like that and that I'd see him around. Now I don't know what to do. I've always liked him a lot. Maybe even loved him. I don't know if we can just be friends. The last time we tried we ended up sleeping together and I'm pretty for sure it could happen again. Honestly, I'd really like to try and get to know him again. My feelings for him haven't changed much even after all this time. I'm just worried that he only wants to fuck me and I'm not sure if I should trust him or how serious I should take this. I'm trying to play it as cool as I can but he makes me feel so weird. I really want to have sex with him but I'm not going to unless he wants to get back together for serious. I just don't know. I have trouble forming meaningful and lasting attachments to people. I don't trust anyone, least of all myself. It's just that I've never felt this way about anyone, ever. What should I do?