Fiance says wanting a healthy sex life is immature

Posted this before in r/relationships but it was deleted and I was told to go here.
I (33f) and my fiance (30m) (been dating for 3.5 years) had a pretty bad fight the other day. Many things were discussed because I was at a breaking point and he never wants to discuss or resolve things so it turned into a full blown fight. An issue that was brought up was that I feel neglected because we never have sex. He has known since he first met me that I am a hyper sexual person. I know he would never match my libido but I feel like hoping to have sex once a week isn't crazy. He will have us go a month or more without and I don't understand why because at the same time he will hump me in bed everyday and constantly wants to touch my breasts, hips, butt, but not ever actually have sex. I have asked him to stop touching me sexually if he is not interested in sex since I find it frustrating and teasing but I do not ever ask him or pressure him for sex. The most I will do is after 3 or 4 weeks mention if has been awhile casually and try to be flirty but recently I have stopped that as well because it hurts that he doesn't want me ever and a lot of my self worth is tied to sex (I know that isn't healthy but if it a fact).

During this fight he told me that he thought I would have "outgrown" wanting to have a healthy sex life (we got together when i was 30 so I am confused why he thought my libido would change so much in only 3 years) and when I said sexuality and intimacy is important he said it isn't and it is disgusting to think and want sex as much as I do and immature (I would happily have sex multiple times a day if I could, I know that is not normal and have never ever tried to sleep with any of my partners more than they wanted). I assume he is just no longer attracted to me, since he liked sex with me before we lived together, or that he was masterbaiting or cheating or something but he says it is not any of those things and said he is obviously attracted to me since he touches me all the time. He has even now fallen asleep twice while I was giving him a bj (previous partners had all really enjoyed these from me so I didn't think I was like bad at it but idk anymore)

I just don't understand it, my whole life I was told men just want sex so I don't know if it is just something wrong with me. Do couples in their 30s and onward just never have sex? I don't think he is asexual, but even on the rare occasions we do have sex it is always a 5-10 min quickie. No kissing, making out, or any foreplay. He will just hump me in bed as he is waking up and if he has a woody once in a blue moon he will have sex with me. He also always asks "are you happy now?" afterwards and it makes me feel ashamed even though most of the time he is the only one actually getting off (quickies just are not enough to make me have an orgasm, I will admit I have started faking orgasms sometimes because he will get frustrated if I don't have one but refuses to do any foreplay or things I like that would get me there).

TL:DR My fiancé says it is immature that I want to have a sex life and I don’t understand if I am crazy for wanting sex.