Why guy bestfriend keeps bring up the fact that we can't become a couple even tho this was our decision and I'm fully aware, I don't want it either?

Anonymous
It kinda makes me uncomfortable and shy because he knows that I'm fully aware of the type of relationship i have with him and I've Mentioned him so many times that even tho we flirt , we're friends who cares for eachother but not romantically.

like we're chilling and talking and then he says something like " yeah we'd make a great couple , we suit eachother BUT unfortunately i can't love anyone anymore " as if i just told him to please date me ,
OR he'd make so many jokes about me becoming his wife and stuff but when i do that he kinda gets weird and says " beside joking , i can't really marry someone anymore, so.." and I'm like.."oh okay buddy?"
Why guy bestfriend keeps bring up the fact that we can't become a couple even tho this was our decision and I'm fully aware, I don't want it either?
3 Opinion