Goodness, treating an interaction like that like it is significant or interesting in any way...
[What, did someone dig through Sebastian's memories, all the way back to that day, because this was somehow the most poignant scene they could think of? Such a person could stand to find better things to do with their time, Sebastian thinks.
...Also, if he pretends like nothing maybe no one will focus on all that "we don't sound like we're human" talk in that memory.]