This was so sad. Sherlock Season 4 Episode "The Final Problem." This starts out seeming so sweet. She loves laughter, and then the turn omg. She cant connect like a human , there are worse things than the sherlock boys' cold hearts.
I'll admit that he thought Sherlock didn't do anything hadn't occured to me, but it had registered that he didn't know she saved Sherlock <<< that changes EVERYTHING! (okay maybe not everything, but a LOT)