If you are the same, and want to understand this kind of emotional abuse (which you are not even sure if happened to you), you need to under what a psychopath is, in order to put the events into context.
I am giving you the best and most simple definition I ever heard, and this was in one of my favorite movies, The Dark Knight.
In this scene, Bruce Wayne coming with his old (and good) reflex, when it comes to dealing with criminals, and that reflex is to understand them first. It is a very efficient way of thinking, when dealing with an enemy. But this time, this thinking does more bad to him than good, because he is not aware that this time he is facing a different kind of criminal. Alfred tells him about it.
But if you think like this in a situation when the other person is a psychopath, then, when you start to try to understand his/her behavior, in order to find the right thing to do and go, you are already in the psychopath's web. He already tricked you.
And the game already started. You are watching his words and actions, trying to answer with the right decision, but you never get to the point of understanding. And you don't even think about the possibility that understanding will never come. You don't think about that, because you know that everything and everyone can be understood, which is right, but if you don't know what a psychopath is, you'll never get there.
A psychopath just wants to hurt. And the explanation ended. No reason, no pain inside, no human motivation. Just wants to hurt, and (s)he is willing to do ANYTHING to get that. Nothing is too much, nothing is too expensive, because NOTHING ELSE matters to him/her. No price is too high, because the only thing a psycho wants is the SUPPLY.