please help me!! i'm heartbroken!

My boyfriend and I have been dating for almost three years, before that we were BEST friends and we had crazy chemistry. We are so alike and we love to do the same things. We are so comfortable and feel so safe with each other it's crazy. He's so sweet and so good to me and we just make the best team, he's told me he wants to marry me (later on obviously) and it's just been so amazing I can't put it into words.

About a year ago he got 'confused.' I guess he just didn't feel ready to be in a serious relationship as he is 22 years old (and I am 21). We broke up for a while but ended up getting back together after a couple of weeks, no big thing.

Just yesterday he told me he was feeling the same thing and he was so confused because he knew I was the one for him and he loved me so much, but at the same time had this unsure feeling and that he was scared, I guess.

He came over today to break up with me but he spent most of it balling his eyes out and holding me and telling me he was confused and he had no idea what to do and he didn't know what would happen.

He told me true love always comes out on top and he hoped that it would work out that way.
I am honestly crushed, because we are so perfect together and I KNOW he feels the same way. He says he just has to take time to think about him and him only before he can think about us. I know he's going back and forth and this is really hard for him.

I really do think we are meant for each other, but it's so hard to just wait around ... I'm not sure what I can do or say. I just don't know.

Thanks,
Alycia