I think it's HUGE that he's on the clueless side. I have lumped these guys in the same category before. I now know that was wrong.

Clueless is workable. Selfish in bed is indicative of being a selfish person overall. I won't deal with selfish people who don't reciprocate.

I think you should perhaps work on the sexual issue since he's otherwise a great guy. Communication is huge. Make sure you tell him what you like and don't like, repeatedly so that it sinks in (of course, in a nice way).

Good luck! You may have a diamond in the rough on your hands.