This is one of those things that the thought process is so different for men and women. It makes total sense that a woman wanting you more would make you feel better, that you are so good she can't get enough... but for some reason, with someone who may not be thinking they are the best or doubting themselves then it is only added pressure. This happened to me with my ex-wife. After my deployment (and even some leading up to it) I didn't have the drive that she did and the more she wanted it the less it made me want it. It took all of the pleasure out of it because I wasn't really in the mood, then me not being in the mood made it not pleasurable for her, so then I just felt worse it was a vicious cycle. From my experience and point of view I would say that you maybe initiate sex about 1 out of 4 or 5 times (I know it doesn't seem like much) and just make sure he knows how much you enjoy it. I am not saying fake it, but help him (very very very! gently) and make sure he knows when he is doing it right. I think that is the best thing you can do... Have you asked him what he does and doesn't like also? That could also help....