I haven't got the slightest opinion as to whether or not he actually has a block, given his change in answer, but blocks I can speak on, if only from experience.

I spent a good deal of my adult life unable to come with a partner. The first man I ever got involved with, - ten years ago, I was just a kid - was a true alpha. I became the bitch. I couldn't come without hearing his voice. When he disappeared I waited. Even after I got over it I was still waiting, I guess, because it took me falling in love with my own sub for me to let him go.

If it is a block, then I would venture to guess that there may be some trauma there that he needs to let go of, or some closure he needs, or a failure of self confidence... Being honest with onesself seems to be key.

Which in itself is a nice segue, because my other thought on the matter is perhaps he has a fetish he is reluctant to discuss? I mean fetish in it's truest sense, in that one cannot perform without some aspect of the fetish being present in the act.

At any rate be persistent. sometimes time can lend the intimacy one needs to be open.

I wish you best of luck.

-matin