OIN,

I agree with Allen that she tells you one thing thinking she is keeping her secret to herself. She will not reveal her secret to you no matter what you say. It is her one possession from OM. But I have stood in her shoes, and it is one thing to say "I'm leaving" and a whole other thing to do it. So again, I say, it is time to, as my father would say, "poop or get off the pot". If she is going, then go. If she is staying, then get professional help and fix it. No other choices. Sticking around and claiming that you are making her miserable is not an option. Go, or stay and fix it. And yes, she will run crying to her father. If he is any kind of father he will tell her to work it out with her husband.