If I could like this post a million times, I would. This is the truth of the situation.If I were the OP, I would expect this to get incrementally better, perhaps, for a while, but ultimately to fall well short of what he really wants.
A partner who desired what he wants out of a sexual relationship would have shown a little more initiative to make it happen by now. If you are not familiar with the Greek story of Sisyphus, look it up. Inexperience does not explain this level of sexual complacency or aversion, IMHO.
OP, unless I'm very much mistaken, this is going to be your sexual life FOREVER. Only you can decide if the journey is worth the toll. The person who is ultimately going to have to make most of the compromises is going to be you.
Like Cletus said, inexperience does not explain (even close to) this level of sexual complacency and aversion.