Someone managed to make Laffey upset.

Either that or the commander spent a second to long talking to Hiei.

Laffey is actually kinda like this in-game. Not exactly yan but more like slightly possessive.

O.O Laffey.... Calm down...

iirc she has a line saying that she won't get mad even if you flirt with other girls.
And then she repeats herself stressing she won't get mad (which usually mean "I'll be mad as hell")