I don't know what to do.....

I am madly in love with my boyfriend and we have been dating for almost two years now. We have both always been so close and so in love, but recently I have become so overly attached to him and I think it's starting to cause him to back off and distance himself. Everyone tells me I need to distance myself too and not make myself so available because coming off as too attached will cause him to run away, but I can't do that. I CANT distance myself. I don't want to distance myself. I can't keep myself busy long enough when we are away and I'm afraid anytime I text him or complain that I miss him that it will annoy him and make him lose interest in me. I feel like anything I do, whether I attach myself too much or whether I try to distance myself too much, I'm going to ruin our relationship. I am constantly in pain thinking and worrying. I love him so much and I worry that maybe i'm causing him to love me less. How can I love one person SO much? I hurt. I hurt so much. My head feels like it's going to explode everyday. I just want to be with the person I love, why can't it be that simple? Why must this be so hard like a game?
I love him.