My girl friend says to me... my personality is full faults you will get hundred chances to leave me but what will be the single reason to stay with me

Are you asking us what you should say or are you trying to understand her question?

It is a question that only you can answer because it should be your thoughts and feelings. Talk with her and find out what is going through her mind. She is the only one who can tell you why she asked the question.

Geez guy, tell her how beautiful she is inside, and out, she is fishing for a compliment.

From personal experience. A question like that is difficult and does not deserve to be answered. You tell her something, and she says everybody tells me that. They ll say they want something different that only you can tell them. Whatever you say, most likely she will refute, hence, I believe she wants to break up and already has her mind set on that.