The break up of your marriage has nothing to do with her, and is completely on the shoulders of your ex.

He was not going to stop looking until he found someone else. Maybe he is Kelsey Grammar or Warren Beatty old at this point, so by default of his age she will end up being his "one true love." But guys like this never have one love, and their love is never true.

As for you, Carl Sandburg said "time is the coin of your life."

I seriously hope you stop spending yours on your ex, because, life is too short, your time is too valuable, and your ex honestly isn't that interesting.