Gamora was confused for a moment before she realized that he, like her, was from a time different from the others. It was confusing and Gamora worried about the implications of that, when people moved around like that, if they left this place where might they end up? There would be time later to worry about that, when she wasn't responsible for COFFEE and making sure people were pleased.
"We did not meet in mine," Gamora said. "It is complicated." She knew that there was no future Gamora, Thanos had seen to that and strangely it made her a little melancholy to think about at length. Besides he had come here for coffee, not the story of her death.
"Coffee is easily the best thing these humans seem to have come up with," Gamora agreed as she reached for her own cup.