Sexless Marriage Community Group
This group is for those people who find themselves married to a partner who has little or no interest in having a sexual relationship. This can be very painful for the other partner and leave them feeling rejected, unloved and unwanted. This is a group to provide support for this very painful and very private issue.

My stbx hasn't touched me in over 10 yrs. I have resorted to just me and my toys (wore out a couple already... lol) I was always embarrassed (and trying to spare him feeling bad) so I would go off to do my thing. More often than not, he would come popping in on me and I got the eye roll and "Oh God, not again." (Nothing like being guilted and embarrassed for simply being human)
If you do go off and do your own thing and he does happen to walk in again, I would just tell him you were simply doing what you needed to (nothing against him, but to satisfy your own needs at that time.)
Good luck.