My bf doesn’t understand sex

Sex with my boyfriend has always been pretty dull. He always wants me on top and cums in like 45 secs. He never does any foreplay and as gone down on me a handful of times. I keep up on my hygiene and wax, so I’m really not sure what the problem is. I’ve told him a few times I don’t get off when I’m on top it just doesn’t do it for me🤷🏻‍♀️ and I’m still always on top. And there’s just absolutely no foreplay it makes me feel like he thinks I’m gross idk what to do about it.