<human>: Can you give me the gist of the text in a nutshell?

It's not like we don't have great sex. It's just I've always had a hard time with confidence. I try my best to act confident when  we have sex, but sometimes he'll say something like "stand up straight" or "stick your ass out." It's constant and demanding. And if I can't comply, sometimes he just gets turned off. I'd have a much better time if he didn't have to put me in a certain position or angle me a certain way. It's like our sex is so orderly, I can't lose myself in him lately.

I don't think this is that fair that he always wants what he wants during sex. He rarely goes down on me anymore. It seems like our sex is always for his own pleasure now, it was never like that at the beginning of our relationship.

It's not like I don't like to be manhandled or anything, but sometimes when you're constantly being dictated and told what to do, it's hard to feel sexy or even turned on at all because you feel like you're not naturally sexy enough. 

I love my boyfriend so much, but I feel like if I bring this up he's just going to brush it off and tell me he fucks me good enough.
<bot>: My boyfriend tells me what to do during sex too often and it makes me feel less sexy and turns me off./How do I tell him how I feel/resolve this.