That "I don't know how to do anything else", struck at my heartstrings (but I am a total sucker anyway). Has your H ever had IC? Kimmie's observation of him being a real "romantic" but not knowing how to make that romance last so he has "affairs" to get that "rush" (I don't know why men can't be like we women and just read a romance novel or something) really resounded with me.
I know this is a very "co-dependent" way of thinking, and he has to be resposible for his own happiness, but maybe you can help him. If he loves you, as he says, and wants to be with his family, which he also says, then perhaps he would be willing to go to IC and/or MC. One thing is for sure, if he doesn't get his head together, then he will never have a fulfilling relationship with anyone, and he will spend his life going from woman to woman to get his "fix" but will never be truly happy. That would be a sad thing.
Just a thought.
And, I think that honesty is always best with kids, although you should take into account their level to understand of course, given their young ages.
Take care!!
TJ
Me45,H49 D24,S18 M26,T28 Bomb 3/19/08 Sep 6/23/08 EA/PA with Secretary 2007-8 3/2009 H moved in w/OW2 7/2009 Let him go w/Love. 8/2009 Legally Sep'd