Your husband never had a chance with your ex-boyfriend in the picture.
Here is the best advice, and the only advice you will get from me.
Stop all of your illicit behavior. Come clean with your husband, TELL HIM EVERYTHING - in detail.
Are all of the kids, his? If not, you must tell him.
If he decides not to divorce you, then he needs to quit his job so that he can be close to home. Both of you will need major professional counseling .
There is no quick fix.
Either you walk the high road and take the honest approach to repairing your situation, or you marry the ex-boyfriend and ensure that you will revisit your actions on that relationship as well.
The simple truth is this. You will face what you have done, one way or another. It is going to haunt you and eat your guts out, no matter who you are with. What you have done will not go away.
Do the right thing and face it now. At least that way, you may regain what is left of your life.
I sincerely wish you all the best.
-NOPkins-
I will ferret out an affair at any opportunity.
-An affair is the embodiment of entitlement, fueled by resentment and lack of respect. -An infidel will remain unreachable so long as their sense of entitlement exceeds their ability to reason.