I know this has been said before but--- Take care of your marriage bed before someone else will.
This should be obvious for married couples. Truly, for years it wasn't obvious for me. After finding out, I didn't blame GR one bit. In fact, I thanked him for telling me and told him that I was at least partially responsible for him falling into this temptation. Before I forget to mention this--- Since my awakening 15 months ago, this has been a non-issue in our marriage because during all those years he just wanted *me*... and now he has as much of me as he wants.
Because of my years of refusing sex, my very faithful dh fell into the temptation of looking at other women. Porn was never GR's vice but when he would be anywhere away from home, he developed wandering eyes for other females. While engaging in this habit he wasn't without guilt over what he was doing. It's just that I kept him so sex-starved for so long that watching other females gave him a small sense of sexual normalcy that he should have been able to get from me only... I refused to give it.
When I was refusing, GR tried to tell me about this temptation but I did not listen. When I would think about him possibly doing something like this, I would imagine it away because if I knew I was causing him temptation, it would mean that I would have had to "straighten up and fly right" with my refusing and I didn't have the desire or the know-how to be the dw he needed.
This is why the Bible tell us that our bodies do not belong to us. Rather, they belong to our spouse. When we withhold that which is not ours, negative consequences WILL SURELY RESULT. It's not "if" they will, but "when". I had to thank God and thank GR that nothing went any further.
Anyone reading this who is low sex drive or no-SD or if your spouse is this way.... I hope you very soon find answers to your marital issues before this or some other temptation claims affections that should only belong in your marriage bed.
It's a funny thing. Back when GR confessed this to me, our sex life had long since been reclaimed so I just had such a peace about it knowing that what was done was in the past. He took full responsibility for the "wandering eyes". However, my POV was that his looking at other women was no worse than my refusing sex. In fact, my refusing was the cause of it all and his habit of roaming eyes was only a natural result.
So take care of your marriage bed before someone else will!