Wow this was posted a very long time ago but a similar thing happened to me...
My brother molested be and abused me as a child and would make me cry, then he would make me laugh and he would apologize and make me promise not to tell. It was almost like a game...
Anyway this has not been an issue for years. But now with the new living arrangements, I find it so hard to get away from his presence that I am always feeling angry and disgusted.
As well, he recently told me that since he cannot physically harm me, he has been trying his best to 'break something' inside of me.. meaning emotionally. When he told me this all of the pieces just fell into place and I knew that there was something seriously wrong with him and that I was being abused.
So I really understand how you feel and I am glad to see that you are making progress.