What to do - AITA

I’m (F25) seeing this guy (M27) who is great. Very emotionally intelligent, attentive caring . I think he would be an amazing future husband and he really really really likes me ( a little too much) … but one major problem: The sex.

It’s the early stages so we should be in the honeymoon phase and fucking like rabbits but we are not. He’s initiated sex on 3 occasions ( it’s been 3 months ) and for all 3 occasions he’s never had an orgasm and would go soft after 2 minutes. Leaving me disappointed each time, because once he’s soft everything stops .
He has got adhd and blames his meds and is currently looking to change it to see if it helps but I don’t know if it’s more than just his meds, as sex is also very much psychological. We’ve also talked about sex and he mentioned the last time he fully enjoyed it was in 2019 when he was not on his meds. All his relationships afterwards have been queer so they’ve just cuddled and kissed and not had sex and he says that was enough for him.

I have a high sex drive and my previous partners met my sexual needs. We would have sex minimum once a week. It was reciprocal they liked being dominate and enjoyed pleasing me (like them pleasing me would get them going and then they would please themselves using my V or I would have my way with them ahaha ). However with this new guy all of it feels performative like he starts with pleasing me which is great and he’s really good but then I try to please him and he’s like no can I be inside of you ( it just doesn’t feel reciprocal and feels very much like I’m just doing this to make you happy not that he fully enjoys it). Then the moment we have PIV he goes soft and the sex ends.

It’s also hard because he says he enjoys sex, wants to enjoy sex with me and is choosing to change or stop his meds so it doesn’t keep affecting us . But I think it’s more than just the meds because surely if you go soft but still want to keep the sex going he would try to please me in other ways or please himself but it’s just stops. I remember my ex once went soft but he continued eating me out and said I want to satisfy you to quench his lust. Which is hot. Going soft is normal no one is to blame but the sex just stops which makes me have the female version of blue balls.

I’m just like should I stick it out see if the meds change his libido and bring it back . I’ve also tried communicating my needs but no improvement during foreplay and oral I am very much giving instructions. I’ve also said I would let him lead, initiate give praise but it still doesn’t help and then I’m left disappointed. It’s so hard honestly he’s the best guy I’ve ever met but it’s the sex that’s ruining it which is then affecting my attraction to him.

But…
I’m also like I’m not his wife so I could just leave and date other people but dating is the trenches and I’m a monogamist so personally I can’t sleep with other people and have him meet my emotional needs as I think that’s lowkey shady and mean .

Ahhh help ! Or anyone had this and it improved over time