Alright the question might sound kind of dumb, but its a little more complicated. One of my friends at my home game is a very good tournament player. He plays very solid poker and knows his stuff. When he has position on me, he likes to call my raises and steal the pot postflop. Just the other night we were down to 4 in our tournament, and I pick up A9s in the CO seat and raise it to 4xbb (the blinds are starting to become significant). He calls right behind me on the button. Everyone else folds so its just me and him. Flop is T42 rainbow. I bet 6xbb and he reraises me 12xbb. I have no choice but to fold. Other times he'll call my flop bet and I check the turn (when I didn't hit anything) and he fires and takes it down. Now personally I think that most of the times when he calls my raises, he has nothing, but I can't come over the top of his rerasie (it would be for nearly all my chips for it to be significant). It just seems like he has a real good read on me and knows that my flop bet is usually a bluff to follow up my preflop bet. What should I do?