No one else can ever compare to him?

I met this guy in August who is absolutely perfect for me. I love him more than anything. He is one of my best friends and he does like me, but he doesn't want to be in a serious relationship (at all, not just with me) and on top of that he might be moving away soon. We are both only 20 now, so I believe that we could be together in the future when he has had his "freedom" & got that all out of his system (I'm not concerned with that, I have no problem settling down with someone right now). He said whenever he is in the area he will come see me.

Since he will inevitably be with other girls, I don't want to cut myself off and just be "waiting for him" because that will make me depressed. The thing is, no other guy even comes close to making me feel the way he does, so I'm not even interested in anybody else. Is this bad?