I don't know if I could say that I will leave if the sex never improves. He is reading a book ( he actually says he is reading it a second time) to help so there is some effort there. If I say that I'd leave that would put pressure on him and he will shut down unconsciously, I believe.
Unfortunately, after a near-20 year SSM and more than five years on the SSM forum here (as well as one other related to mismatched libidos), I've never seen anything OTHER than communicating that IT IS A DEALBREAKER, work. It's always been either walking, or the credible THREAT of walking, that gets them off of the dime.
