You basically thought that you could have s meaningful interaction with somebody who is incapable of such. And, he continued to push your buttons.

Crying in and of itself does not indicate sorrow or regret over things. I see it a lot in court. As judges will do, you fell for it, and wonder why your father was smirking. Simple reason he was smirking: he got the reaction out of you that he wanted. You are here wondering why you feel ashamed; a part of you actually believed his act.