My boyfriend is guilty after we have sex.

He has a low sex drive, unlike me who has the libido to do it twice a day. Although he lasts long in bed when he needs to, he just feel overall just satisfied when he does it once. I said I would downplay the sex if he wishes me to do so, but at the same time it kind of makes me feel like shit. Kinda like-- I'm putting him in a situation that he feels bad, even though I personally know that a communicative relationship with sex is extremely healthy and shouldn't be something to be guilty about because of how one was brought up. It's natural and it's something to embrace for what it is. What should I do to let him know that as long as I consent to sex he should feel amazing?