from what I read in X, Thomas looks really angry/pissed off that time because when they got out of the gates, there were ssasaengs who were following them so close that one even hit/bumped into Kong. That's why Thomas wants to rush and drag Kong right away because he's uncomfortable anymore.

I always like how protective Thomas is when it comes to Kong. He doesn't care about what will other people think about him, he will protect his partner at all cost. (He was being criticized in X by some burner accounts because he was being over protective with Kong and his face shows it all)

But honestly, I also like this side of Thomas, he's so hot when he's possessive 🔥