GEL
I've also been avoiding commenting too much on this but Stigmata and many others are on target here.
When I was separated and "exploring my options" I ran across this AFF website. I can tell you that the photos on there alone were enough to send me off of there in about 1 minute. That site is COMPLETELY about F-ing with no strings attached. The fact that your H was on that site for 3 YEARS, all the while in MC, blah blah. He's is lying through his teeth about not hooking up with people. I suggest you talk to this MC asap and get her take on his lies. I know you like the MC so see what she has to say. I'm really sorry you are having to deal with all of this. But don't set yourself up to take more of his BS. He does it because he can get away with it. Don't let him.