Bf[30M] never initiates sex and turns me down when I [27F] try

Hi all, sorry if this ends up being a wall of text! We’ve only been dating for a short six months now and I’m honestly surprised that this is becoming a bit of a problem for me. It started out totally normal (if not better than average) and we couldn’t keep our hands off each other for more than a day or two at a time but that has since dwindled down to nothing, by which I mean we haven’t actually had sex in over a month despite my efforts. I would like to state that literally everything else is going very well so far, we have tons of fun spending time together and enjoy the same hobbies, have met each other’s friends and families and overall get along extremely well. I know this is very early on in a relationship though and I’m not delusional enough to pretend like anything in life is ever “perfect” though I would say that I honestly like him more than anyone else I’ve dated so far! Which is why our lack of intimacy is so particularly painful for me. I’m an affectionate person and I can’t help but feel like my needs aren’t being met even though I love being in his presence. When I’ve brought it up a few times, his answer is always stress and low energy due to his job which I totally understand as I have a very intense job as well. I try to be as understanding as possible and have never once tried to pressure him into anything, when he turns me down I drop it immediately. When we’ve had these few conversations about it he seems uncomfortable and says that he thought he already explained it well enough the first time we discussed it. I don’t want to make him feel guilty by bringing it up constantly so I’ve kinda just been holding it in even though the thought crosses my mind almost daily. I feel so undesired even though he always wants to spend time with me whenever we can outside of our jobs and other responsibilities.

The last few times we attempted to have sex he actually was having a bit of performance anxiety (going soft before and during penetration) and I comforted him about it and made sure he knew that I wasn’t disappointed and these things just happen. He did say that that’s never happened to him before though so that’s hard not to take personally honestly :\ I care for him deeply already though and I really hope this all solves itself when he moves into his own place because he said that he’ll feel better and be more in a sexual mindset then (he’s been renting an apartment with a friend but even when the friend is gone he still doesn’t initiate anyway so idk if that’s really part of the problem or not.)

When we were having sex it was really nice and fulfilling so I guess I’m just confused why it stopped for seemingly no reason even though we get along so well. I struggle with self esteem issues enough already so I’m hoping that I’m just blowing it out of proportion. He has made sure to remind me that he finds me attractive so I appreciate that but honestly it feels hard to believe him these days. I think I’m struggling with this because he always would talk about how kinky and sexual he is as a person (to which I agreed I am too) but I’ve yet to even experience that side of him. It hurts knowing that random strangers he’s had causal sex with over the years have gotten to know that part of him more than me. The worst part of this situation in my opinion is that it doesn’t even seem to phase him that we aren’t intimate anymore. I don’t know how else to approach it other than showering him with affection and trying to be flirty which he responds fine to but it never escalates when I try. I’m trying to just be patient and give him time which he says is all he needs to get back in the groove of things. How do I learn to accept this and possibly convince him to be more intimate?

TLDR: Bf(30M) is no longer interested in sex with me(27F) even though the rest of our relationship is amazing, how do I handle this respectfully without pressuring him?