<human>: Could you distill the essence of the text into 1-3 sentences?

I've been dating this awesome guy for like 3 months now. This has been some of the happiest couple of months in my life, he's such an amazing guy. He's very sweet, intelligent, quick-witted, generous, a good listener, attractive and has been nothing but an absolute sweetheart to me. I think he's probably the nicest person I've ever dated. 

Couple of issues though: We live 45 minutes apart. Not an issue, but also not 'local'.

I go to an all women's college. He just finished Community College and is going to be commuting (from the same place) to a gigantic coed major university in our state.

This makes me really uneasy and sad. He hasn't had an of the "college experience" crazy parties, hookups ect ect like I have (I went to a big coed school before a transferred to a tiny women's college). I'm basically concerned he's going to cheat on me because he's going to be around tons and TONS of smart, interesting women that he probably didn't have as much access to before.

I've had two other relationships before and both of them ended more or less because the person cheated on me. I don't know if I can emotionally and mentally handle that happening a third time. I'll probably institutionalize myself if it happens to me again. So I'm wondering if I should just end it now despite the fact that I am really crazy for him and I like him so damn much, I'm really torn and I think about it every night and basically start crying when I think about the steps of someone cheating on you slowly seeping in (calling less frequently, random arguments about nothing, slowly bringing up some other person constantly.) I'm wondering if I should cut things off now when it's less serious so I don't get as damaged when he does move on.

Someone please help me, I'm very torn, confused and sad.
<bot>: Boyfriend of a few months is transferring from community college to gigantic school 90% sure it's inevitable he's going to cheat, wondering if I should end things now to avoid getting own feelings hurt.