Do just the opposite of what he expects you to do and you will gain control of yourself and his control tactics. He knows what he is doing and he knows that he can manipulate you with his smooth talk. Guys can tell when silly girls are smitten with them and the majority use it to their advantage.
Just tell him that you aren't falling this time for his games and when he gets serious and is willing to make commitments and stick to them you might be willing to consider. Remind him what he did before and you are not going to go through it again. Do not allow him any type of physical contact with you until he commits.