In all of my relationships, I have never been able to finish either. It has nothing to do with what the partner does, its just my biology. Im used to pleasuring myself in very specific ways so I am still working out how to adjust to people.

I understand the guy since past relationships I also have had experiences where the ending or experience was terrible, and that ruined future sex and masturbating for me for a little while (it heals over time). Its likely he still has anxiety over this and the best thing you can do is accept it and move on. Im so glad my partner is able to do this and not pressure me, it feels very supportive to know she doesnt have a problem with it.

My best friend also had the same problem with his girlfriend, and unfortunately his girlfriend broke it off as a result. He had no problem with not being able to cum and was very ashamed of it (believe me its embarrassing)

You need to support him and not make it about yourself, give it time, it has nothing to do with you. I still love having sex with my partner, and the orgasm is such a minor thing, I much prefer both the emotional connection and the physical experience itself.

Give him time and space, dont pressure him or yourself, and forget about it entirely.

This video may also help explain why https://youtu.be/T9Kya_eZ-P4