Once everything was under control, it was pretty obvious that there wasn't going to be much more glee to glee club for the day. It sucked because Puck had been planning to surprise Blaine with a love song that maybe could have counted as a golden standard. So, two birds one stone and shit.
Sure, he was concerned about Artie and of course he wasn't going to play now. But it was a shitty situation and he was allowed to get a little mad about it, right? Just in his head.