I’m trying to imagine how this would have played out with my DP.
He’s a lazy shaver - only does it once or twice a week most of the time. By about day 3 the coarse grade sandpaper is too much and I can’t kiss him without getting a stubble rash.
So before we have sex he has learned that he HAS to shave or I end up turning away from him, I can’t get into it properly . (To be fair I still think he looks gorgeous with stubble but it’s quite rough to kiss.)
I don’t have a repulsion like you do, so if it was important to him to keep it for several months and I was seeing him in the middle of those months, I’m pretty sure I’d put up with it, even though it might change how we do things.... However, I cannot imagine for one moment that it would be important enough to him to keep it, if that meant no sex 
The minute he realised he wasn’t getting any action, day one of those two weeks, he would have happily shaved it off, as I’m pretty sure nothing is more important to him than our sex life. I’d be more annoyed with him about that than the bloody moustache in the first place. Every day of those two weeks he’d be very well aware of what he was missing out on and I’m pretty sure he’d cave after a day or two, if not immediately.
I cannot understand how your H, after trying it on and being rebuffed, knowing full well why, would then keep the stupid face fluff!! Either he’s spectacularly stubborn or your sex life isn’t that great!
I would say “why not just go for a BJ” but mine has even more fur down there He doesn’t twirl wax in it though