Divorce is your last option. But do this:
Work on yourself (workout, lose weight if you need to – get in the shape of your life).
Take this time to focus on YOU (this may be a phase for him…guys say stupid stuff sometimes…what can I tell you…)
If you do opt out for a divorce, make sure you are READY to hit the streets, dating is….a whole other extreme sport so be ready for that.
Make sure he keeps the children an equal amount of time. (one week off and one week on work best…you will need to redo your life and find a new romance….this whole thing where guys keep their kids every other weekend is very tough for the woman…and quite frankly totally unfair.)

Stay strong – keep going – there’s more to life….there’s happiness 🙂