Yes, she will crash at some point. I've seen it first hand. The fantasy love my friend had with her OM crashed and burned about 2 months after the divorce. She hung on to the OM even though it got worse and worse. Now, 2 weeks ago, OM left her. She is only NOW dealing with her divorce and everything horrible in her life. Her ex husband has now moved on (1 year later) with a wonderful woman who is child centered and kind, yet he has his kids part time.