Sherlock had returned to the living room and his laptop, giving Watson and Ted space. He's not certain if Ted will tell her what had been said that upset him, but either way he will defer to the other man's desires.

When Ted calls him he puts the laptop aside and heads to the door. When he gets there he glances at Watson's face. She has a hint of puzzlement about her. Ted hasn't told her.

"Yes?" Sherlock asks, turning to Ted.