Im sooo confused. my boyfriend blew me off, slept over at another girls house...its long, but I really need?

You should definitely break up with your current boyfriend, Especially if you know that the other guy is better for you. You should just let it go and go for what you really want. And the whole "You never forget your first love" is true I guess. Depending on the relationship you guys had. If he was awful to you, you would more than likely forget about him in time.