He didnt make a remark on how she looked. She chose to interpret it that way when he was going to merely jokingly try to pawn off the food from Bar. Maybe it sounded that way, but it wasnt meant that way. And nobody ever said Bruce was brilliant at conversation. he isnt. Never has been.

Anyway...

He glances at her once as he eats, but keeps his silence. After being shut down in conversation, he tends to withdraw. Soon, he too is lost in thought, thinking about his upcoming work.