You have a boyfriend and a husband?
I think it is time to put the big girl pants on and get real. I am sure cheating is exciting right now -- its new and different. But if the boyfriend will mess around with a married woman, he will eventually mess around on you. When the thrill wears off he will be gone.
Break things off with the boyfriend.
Decide what is really going on with you.
Then make a marriage decision.
How much respect is DD going to have for you when she realizes Mom was cheating and that is why she can't live with Daddy anymore?