Starsky99 had I treated it like a business transaction the last time he left at least my finances would be in order this time. I went by my emotions. Shouldn't I look out for the well being of myself and my kids future?
I'm not disagreeing with this. I'm saying if you DO want to go that route (and it sounds like it may be wise of you to do so), you're going to need to treat it like the business transaction it is, and forget about his unfaithfulness. You're wanting it both ways, and I think you need to choose which tact to take.