sometimes its like fitting a square peg in a round hole

There has been a lot of tension lately between Joe and I, and I really dont know what is going on with us.  We fight about little stuff and get annoyed with each other, but lately it has been pretty bad.  We have gotten into 2 huge fights over the past month.  I dont know what to do anymore, its like we have hit a brick wall and we keep on arguing about it instead of doing something about it.  I wish that I could say that we love spending every second togther, and that we are the "perfect" couple, but we arent, never have been probably never will be.  We are happy together and I see us growing old and grey together, but I just wish that I could figure out what is going on inside of his head.  He says that he doesnt feel like himself, and he just is BLA all the time, and I guess I can understand where he is coming from with that.  I just am tired of being his doormat, he walks all over me, treats me like shit, and half the time he seems like he wants nothing to do with me, for instance, for our anniversary we went out to dinner, half the time he was playing in his blackberry, I dont know what to do, cause if I bring it up I am the bad guy, but if I dont he continues to do it as if its no big deal.  

ARRRR, I am just so frusterated!