Can I trust him anymore? I really really need someone to tell me how to handle this

[Anarya]

This is a long story but, I'll break it down.

I had a boyfriend, who is also my best friend. I really loved him, he really loved me. For 2.5 months it was like a dream. Then one night he tells me he has a crush on someone else (who happens to be a good freind of mine), someone that I had suspected he liked for quite a while, and it turns out he did, for over a year. Then he told me he wasnt sure if he loved me anymore, he said that he thought he was starting to like this other girl more. He really hurt me, I didnt know what to do with myslef, and i still loved him. I felt like such a complete MORON for letting myself love him the way I did, how could i be so stupid? Then the next day he told me he was sorry, that he did love me. I couldn't believe him. One week later he told me he had gotten over the crush and he really loved me. I still couldn't believe him. But now the problem is I can't trust him anymore, at all, I dont know whether to believe what he says or not. And everytime he mentions that girls name, everything inside me goes flat, no matter how good a mood I'm in as soon as he mentions her I just suddenly feel alone, cold, and like I'm just there becuase well, i was there. Now we seem to be basically back together, but its so cunfuzing becuase I dont trust him any more, and when he talks about other girls I just, go cold. I just dont know what to do. He's going to hurt me again isnt he?

Should I have taken him back? Can I trust him? I just have no idea what to do, and this whole situation is just... crazy. SOMEONE PLEASE HELP!!! :'(