
Ok so spoilers ahead:
But when the dad of the girl goes to confront Sherlock and Fred, Sherlock has the magnificent idea to put his skull ring on the other side so it looks like a wedding ring and says his name is Mr. Scott and is married to a his partner. If I remember correctly, Fred is gonna ask him why both, him and Will has the same name and we are going to have some of Sherly's lore!

I'm pretty sure Sherlock only said that so that woman's father would think he's married and not try to kill him, you forgot this takes place in the Victorian time period. Homosexuality was illegal in the Victorian times from what I've read, if Sherlock and William really were in a romantic relationship then they would have to hide it from everyone
Sherliam nation is about to be feed so well