It is a bit surprising that he's staying with this subject, and that he's offering his opinion without her having to prompt him for it. He's not a very verbose guy, but this seems like it's important to him that she knows this. Her steps slow a little so they can walk besides each other along the way.

"Thank you. It's been hard..." It's not something she wants to unload on him, even if it seems like he's all right discussing it. And yet these questions she has just won't go away. "I thought at least someone would have remembered us. But not even Athena did." And then she realizes that he probably doesn't know who Athena is. "She was the computer system we had. I don't know why she didn't alert anyone that she couldn't reach us. If Overwatch was shut down, there should have been a computer message, and one sent to us in Antarctica would have bounced back because our comm tower was damaged in a polar storm."