exes & sex

I feel at a crossroads on what's right and what is wrong so maybe somebody can help me out here... Alright so here goes nothing, about six months ago I began talking to and dating this guy and I truly did have feelings for him, we had sex a few times and I felt happy with him and I wanted to be with him, unfortunately we began dating at a horrible time because he was going through pledgeship with his fraternity. Long story short his guy goes MIA on me. No texts, no calls, NOTHING. So I moved on but there were a few times he ran across my mind. Last night I randomly get a text from him he explains why he ghosted me and apologizes and tells me that he's changed over the past couple of months and that he's a better person then asks me to come to his apartment today. So I went, and everything was fine we were getting along and it wasn't awk. Eventually he does kiss me and I can tell he wants to have sex but I tell him no... honestly when he kissed me it was like those old feelings never went away.... but does he actually miss me and want to try again or does he just want sex from me?