So this is messy, and kind of a long story... I need some advice.

My fiance and I broke up about 2 weeks ago, and believe me it's for the better, and I will be just fine as soon as I can get away from him. The issue is that we're stuck living together for another month (my new apartment won't be ready til the second week of August and he's kinda in the same aituation)... Of course, I still do love him, that'll take a while to fade, but within 12 hours of my announcing that I was moving out, I discovered 5-6 booty calls on his phone one night when the God damn thing kept going off at 2:00am keeping me awake.. this is coming from a guy who hasn't let me out of his sight for the last year and a half, who proposes to me like once a month (it's started getting weird, and he was extremely controlling and over protective to the point of me just feeling like I was suffocating cause I never had any time to myself or with my friends) so it was a huge shock when I found all these chicks on his phone calling him "babe" and them discussing meeting up in hotel rooms on his lunch break... I confronted him, he swears nothing happened, and from what I saw, it seems nothing actually ever did happen and he has since stopped talking to these girls... but my trust is gone. Completely gone. Even though I still feel love for him... for the good times anyway. There are days though, where I am not so strong, and I feel lonely and I crave intimacy.. and well, I still live with him, and I'm still comfortable with him.. I'm just so afraid he's slept with one of those girls and that I'm going to contract something (I am currently not on birth control, so we are using condoms)... I'm just so conflicted.. Have sex with him, don't have sex with him? As far as I know he isn't fooling around with anyone. I could just really use some women to women advice here... Sorry for the long post.