I agree that any woman in this position is better off ending the relationship -- but it's important to understand what's happening to us.

When I found out about Mark's affair, I needed to understand it as best I could before I was able to move on.

I ended the relationship that night and never saw him again but after I broke up with him I had a series of phone conversations with him that I thought of as "exit interviews."

I learned how deeply dishonest he'd been with me, and for how long, and I also learned how committed he was emotionally to Mollie.

Knowing this made it easier to move on.