If hes diabteic 2, then its his meds doing this, it brings on ED, but if hes a diobetic one then its still his meds but worst, so being a 2 he can get off his meds and do it on a strick diet, this way he might be able to get back to a sex life, theres lots of info on differant sites for all the info you need.
Hope this helps a bit.
Good Luck
I once dated a guy with Ed at first I didn't know what it was, he always made it seem like his problem was my fault. I dated him for two years straight then we separated, then we got back together & the problem still exits&he still try to make it seem like it was me.. I mean I would spend hours tryna get him to a climax point&i couldn't understand I didn't have this problem with any other guy I had been with, we ended again, then got back together same problem. I just got tired of it, not only that but he also had a supersized ego&he was very arrogant,we ended again after a while he finally fessed up. And after the last break up he let me know he has an enlarged prostate. U guy may need yo be checked for that,that could be a cause,at least he trys with you,the bayhs and such yhis guy difnt do anything with me but bkame me for his problem and make it seem like it was my fault,there was no intamicy what-so-ever with him. So honestly I think for you its just the actual act of intercourse that is missing but there are things you guys can try,good luck
tell him to get presribed for some sexpills (viagra, cialis or levitra)