Okay, yes, they argued. It's not the first time, so Sherlock doesn't understand why the fuck they're being so difficult now!

Yeah, maybe he went a bit too far with the things he said but they know he just says stuff like that when he's mad, it's not like he means them...

Still, they're sitting in their desk, working on something, they haven't said a word to Sherlock since the argument a few hours ago, not one, not even when Sherlock actively tried to get them to talk... In other words, Sherlock's getting the silent treatment, and he does not like it.