Accidentally endgame sherlolly truly is the stuff of legends, man. Like, the only thing the shippers demanded from the show for years was a) keep giving us scenes where they interact and we'll do the rest, and b) don't kill her off as a source of manpain. And then the finale comes and the writing is so convoluted and shit and unnecessarily melodramatic that the only way to plausibly interpret it is that "yeah, he actually does love her for real". And because no one wanted to deal with this nightmare show anymore, that's where it left off. Truly the patron saint of unlikely ships, I swear.