My jerk off df and I were having some issues a few months back. He went running off with this women who knew we were having problems and that we has kids and caused all this bullshit drama between us. Anyways my df now dh obviously worked things out. Well I found out she's now engaged and had been during the time she was with my husband. So I'm debating on sending a friendly email to her fiancé letting him know what a gem he picked, and all shit she caused me in my life. I believe h deserves to know. What would you do?