Lack of sexual desire in relationship. (ED)

I’ve been in a relationship with my bf for a little over a year. We started having sex after a few months after dating. But the sex wasnt very often. Once a week, twice a month.. then eventually once every 3 months.. as a woman i actually crave sex very often. I want a couple times a day, everday. I completely understand how my bf may not be able to keep up with that. But when its gotten this infrequent and when i do try to start things he tries this whole innocent facade.. like “woah your hitting on me pervertedly this is weird” kind of thing. I always come on to him cuz i have a high sexual desire.... he doesnt come on to me at all anymore.. the last time we even got close he couldnt get it up and claimed it was erectile dysfunction.. i want to be sensitive towards that.. but we are both in our 20s.. and this only came on recently.. he didnt have a problem with it before.. its made me feel so sexually unattractive and unwanted. He says he loves me and thinks im beautiful and whatnot.. but a relationship without sexual desire is just a friendship...