Can you help me with a difficult time through my marriage?

You're talking about a cuckold relationship here. It's ideal if both parties want it to happen. A man can love his wife enough to give her the gift of having sex simply for pleasure. Not all women can separate love from sex, but for those who can, it's a win win relationship. I've even asked my own wife if she'd like to have other men since I only have around 6", and it's not that huge around.