Is there another OP? I don't think so BUT a year and a half ago I put a keylogger on his computer and found he was sending out emails to women from a free dating web site. The reason why I don't think there's another person is because he is generally a couch potato..unless he does it during work hours, I don't see how he would find the time.

What is THE RIGHT THING TO DO in this situation?
The right thing to do is TRY and work it out. Unfortunately if anything is left to him, he will take his sweet time, whether its divorce, setting up a MC appointment etc. This is how he generally operates. If it takes effort, he will leave it on the backburner.

There are things he has never been open about. Our sex life has been nonexistant. I have not 'let myself go'. If anything, it has been him. When we were dating, he was using viagra, he was 37 years old. He did this without telling me. I found out myself.
4 months into the marriage, I found nude photos of him on a digital camera. His explanation was because he thought he was 'shrinking'. I guess he never heard of a ruler. I know that he does have ED but he will never admit it. When I ask him why he never approaches me, his response was, you don't like sex. Now his response is, you're bad in bed. Is he gay? I don't think so.

I also want to add that prior to meeting me, his longest relationship lasted 6 months...and he was 37. Red flag! I don't know what to make of all this. I'm not a psychiatrist but I know something is wrong.