Without God in a marriage almost noone would ever make it because almost everyone sooner or later gets bored and does not get their needs met. Only God can give us unconditional love and commitment for each other (the kind of love most mothers have for their children). On some level your husband must sense you are not 100% committed to the marriage. This uncertainty will keep him from totally devoting himself to you even if he is not aware of it. Love and attraction can return to a dead marriage but only if both partners are willing to work at it. Going to church together, pastoral and marriage counseling, marriage self help books, and marriage renewal weekends can all be tools to bring about needed change. Think really hard about giving up a good man; aren't too many of them out there. I hope things improve for you.