I was in a similar position with my ex -- although I think I used my start up as an escape putting more time into it than I would have otherwise. Then again, I could just have an addictive personality and it might not have made a blind bit of difference.
Either way, dwelling negatively on the past does not help as you cannot change it. I don't believe I would have come to the same conclusions if I had not experienced it first hand. Remember: work smarter, harder not longer!
