L,
To respond to your comment, it makes sense what you are saying. But I cannot go through pain like that over and over. I will not disrupt my children's life over and over if I can help it. I will stay for as long as I am able to mentally and then if the time comes for me to go because I'm not happy in the situation, then I will go. It will be final. No going back. That's how I handle relationships. When they are over, they are over. I am comfortable with that. It's getting to that point that's hard. The actual decision of how much is too much and when it's not worth staying anymore.
Jenny