Anxiety issues. Don't know what to say.

She was physically abused by her now ex boyfriend and that episodes are repeated in her mind. She is not able to deal with it. It has generated the fear of loosing people. she feels dependent on me sometimes and this realisation again makes her think that she should never be dependent as life has taught her..she has doubts that whether she loves me or not when these episodes are repeated..it's difficult for me to deal with all the situations.i don't know what to say I try to be normal but even though I do that she thinks nothing is affecting me, which gives her a thought that no one understands her.she is a kind of a person who will never think of herself first. For her, her parents are her world, her parents don't know about it. She thinks her home is her safe haven but now her father is getting in business with her ex boyfriend. and I don't know what to say.