You need perspective. Your life does not revolve around Kevin. But your girls lives DO revolve around you. So you have to get a grip. Your emotions HAVE to stop being moved so violently by every little rock of the boat.
You think too much of Kevin and give him too much influence in your life. Yes, he is your husband and yes you ARE called to stand, and not just for your marriage but to stand in the gap as a believer to the saving of his soul.
But what does it really mean to be a believer?
Tell me that.
What do you think the fact that you believe in Jesus means for your life today?