Interesting...but, I think your question should not be if you should stay or divorce - but - what is it in your M that you are unhappy with? What is it with your H, that you are angry about?
You are able to physically release sexually with the OM - so it's not a sexual dysfunction within you...but you just cannot achieve that with H. You are choosing, mentally, not to find that level of satisfaction with him. What is it that is bothering you...please don't say love...this goes back quite a ways. You definitely have issues with your H, but it's not sexual...it's psychological.
Think deep, what these issues could be...you don't need to make any decision yet...think about what is really bother- ing you...then post back.