Hi Oktober,
It is tough to enter into R, after the lying, after the limbo. Since you had an EA, then you are also likely having a difficult time getting OM our of your head.
There are a couple of things to think about.
First off, is your BH here on SI? If so, then he may be getting information that an 8-day PA with only kissing is very rare. The way you say it, you were in the OM company for 8-days. Does that mean you took a trip? Or did you BH take a trip? or just plainly that the physical component of the A consisted of 8-days where you and OM kissed? I know that if I would have been in the company of the MOW for 8-days, something more than kissing would have happened. So, there is sort of a "logic" component to the story that is not making sense you to your BH regarding the 8-days and the kissing only part of your story.
Second, since there was a strong emotional component to your A, you are probably facing some level of fantasizing about the OM when you are with your BH. Especially this early. This isn't to say that you don't find your BH to be an attractive man, but you are fresh out of a time period where you basically were spending most of your day thinking about the OM, how you wanted to be with him, how you wished you could escape together, all of those fantasy stories...and now instead, you are having to deal with the fallout. Regardless of how the end of the A happened, if you were really that attached to the OM emotionally, you are dealing with some very strong memories, coupled with not having had enough time to begin working on yourself to get to the root of why you are having a hard time letting go of those memories...it is just going be very difficult for you right now to connect to your BH.
So, rather than feeling emotionally bullied by your BH, maybe think of it more as you are really committing to your BH, instead of doing what he is expecting of you. Do you see the difference?
Another thing is that often something will happen with a couple just starting R where they basically go at it like rabbits for a couple months or so. It is called hysterical bonding (HB) and, while it is a fun, weird time, it can also be confusing and make you feel like there is a lot of pressure on you to be present during sex with your BH. Well, you may have difficulty being present at first, because of your emotional tie to the OM, the tie that I think you are trying to bury instead of work through.
It's your second anniversary? How long have you been together as a couple? Because a loss of intimacy this soon into a M seems a bit soon too. The honeymoon phase lasts for a different amount of time for each couple, but 2-years seems a bit quick. What was your role in the loss of intimacy? What was your BH's role? And what is your definition of intimacy? What is his?
Sorry to question you on the 8-days/kissing only aspect. The trend here at SI is that it rarely stops at kissing. Not to say your didn't just stop at kissing, just that it is not a common story.
Just so you know, I spent a long time in limbo, only had an EA, with a couple of hugs, entered into R with the full intention of working on myself and remaining M, then had false-R after six months because I wasn't letting go of MOW mentally, and have spent the last year and a half working on myself and our M. Don't rush it. Be honest with yourself. Anytime you think about things and try to put some of the "blame" on your BH, then consider that maybe you aren't doing it right, re-think it, and try again. IMO, if during any part of R you find yourself blaming, or not taking responsibility, even in the most subtle way, then you aren't being honest with yourself. That was my litmus test, and continues to be even now.