Simon is nearby when she is in the kitchen, still in the shadows while she's working on making coffee. He watches her body language with a certain sense of frustration and anger. It's some amount of self-control that he isn't lashing out at the person who is definitely at fault for making Alex hurt -- he'd always known Strand was a danger in more ways than one. This is just the proof in the pudding.

"It's too late for coffee, Alex."