I would suspect his minraise on the flop as a sign he has hit the king (with a middle kicker) or has a flush or straight draw, I don't see why he would raise with bottom pair given that his AF labels him a calling station. You definitely should've reraised on the flop, TPTK is way ahead of his range seeing as he is 54/4. I think this type of villain would shove with both TPMK or a draw, when his opponent shows weakness. I call the all-in and freak out when he turns over K3