Mezibuz, Where did you go? Please come back. I have heard that Rabbi Twersky sometimes responds to people personally, and I have a hunch he'd either talk to you himself or get you a referral to a Rav who understands both sexual addiction and marital situations. pm Guard and he can get you in touch with Rabbi Twersky (sp?).
The progression you describe I know way too well. Thank you for reminding me.
What an amazing accomplishment--a whole year. I'm just trying to get to two months, one day at a time, Be"H.
Here's another suggestion. Go take a walk by yourself (for me dawn or dusk seems to work best. Don't know why.) Maybe bring a sefer, maybe not. Maybe an mp3 from the kosher aisle here. Maybe not. Maybe a nosh. Maybe not. Whatever. And sit down for a little while, and just have a heart to heart with Hashem. In whatever language you are most at home with. Just spill the beans. "I'm going crazy. She's being a b---. why did You put me in this situation? I don't know how to handle this. I can't stand the intensity. I know what comes next. Please. I'm feeling utterly powerless to stop this moving train." Whatever is in your mind and heart. Just let it rip. I do this often, and the answers, not always in words, sometimes just a caress, a nachamu nachamu. And I'm a big cryer, so there's usually a lot of tears. (For me it's important not to indulge the temptation of being dramatically, deeply, ever so meaningfully in close relationship with Hashem. I have found that to be yetzer driven. so I dry tears before it gets what feels like self-indulgent).
Anyway, He usually gives me coiach to go on, to know in a felt way what's important. It's pretty hard staying ticked off at the wife, when in my deepest place, where I talk privately to Hashem, I know my part in it all, and I know what will turn everything around, and can see that I'm just too stubborn, or too standing on principle, or too "I'll be darned if I'm going to cow tow to her, etc etc".
It just occurred to me that you probably do this already. Oh, well, it was good to have a talk with myself.
Please feel free to pm me anytime. But please do come back and post.