Search Results: ex boyfriend keep asking me for sex

Little back ground- We broke up in April. Things were great between us a real connection. Everyone saw it and was shocked about the bu bc we both were happy and showed it.
He was having a hard time finding a job became stressed and closed off from everyone including me, then told me he didn't feel what he thought he should at the point in relationship and wasn't sure he would ever. Confused me bc before he was all im falling for u everyday etc.
I tried not talking to him, e initiated first, asking how i was etc. We wound up having sex a few times through the summer. Then I had to work with him for a few weeks, and everyone saw his actions and picked up something was there. ( he was always looking at me) when i asked he played it off.
August came he told me it was not a good idea anymore as it wasn't fair to either of us so we stopped. But it happened again and he said the same thing after that we should be friends without anything else. I stopped talking to him and anfter a few weeks he contacted me asking if we were talking. Talked for like 4 days straight. Him asking why i got home late thinking i was partying etc. Asked to hang so i went. We wound up having sex again and sure enough he texted me saying he was sorry and he knows it seems like this back and forth thing but he still feels the same that we shouldn't do this. So why the back and forth with everything? is he still feeling something and unsure? and why the suggestion of friends isn't that keeping a line open. I have been wanting to tell him something since the bu but have not about my feelings should I? Its basically that we should try again but im not asking for that. So why is he going back and forth and acting like this?