He stands drinking eye tea, while discussing John’s wedding as she casually brandishes a bone saw while phoning Mrs Hudson about a speech :
He stutters… he actually stutters when asking her to “solve crimes”. She makes him nervous… Why would he be nervous if she was just there to fill the “hole” that John had left??
Digestion slows him down, London is in the middle of a terror threat and he’s just watched a man disappear on CCTV footage… but he still wants to buy her dinner:
Sherlock doesn’t make jokes, not intentionally, unless it means he can see Molly smile:
She makes him apologise… the Great Sherlock Holmes, she makes him apologise with nothing more than a look, something John’s never been able to do.
He must of noticed the ring before, but he only mentions it at the end of the day when he sees Molly reluctance to stay out longer. This isn’t a “I’m happy for you” smile, it’s a “I’m scared I’ve lost you for good this time” smile. He never kisses anyone, not even his parents, but Molly, yeah - he kisses her, at least twice -