In A Study In Pink, when they're at the cafe, John asks if Sherlock has a girlfriend or a boyfriend which everyone catches...

BUT THEN

SHERLOCK QUIETLY SAYS "I consider myself married to my work but I'm flattered that you..." TO WHICH JOHN TELLS HIM HE WASNT FLIRTING HE WAS JUST SAYING ITS ALL FINE

SHERLOCK WOULD BE ABLE TO TELL IF SOMEONE WAS INTO HIM WOULDNT HE? UM? WERE THE WRITERS SECRETLY HINTING AT JOHNLOCK? EVEN FROM THE START?

I'm sorry but Im just like????