[He looks like he's about to argue, stops, closes his mouth, and then looks troubled. It takes a full minute before he speaks.]

Memory it brought up was a kinda uncomfortable one, I guess.

[It's way, way more than just that, but he's also awkward about sharing with someone he's only talked with once. Except he really wishes he could talk it out with someone, and that brings up other difficulties.]

Made me miss my friends too.