There is so better out of there. Adultry is a trap, it seems you can't run away. The way to overcome this situation is to win the battle in your mind, you can choice to be a slave of it or to win. Yours, is the choice. Consider what is good for you, your family and for God. Overcome is simply a decision, nothing more nothing less, a firm and easy decision, you don't have to think about nothing else than: shall i stay here in this adultry situation? don't mind of anything, just reply to this question for yourself. Remember: yours is the decision. What you want.
If you will make your choice for God He will surely, surely find a way to help you.