Had Benji known he'd interrupted a self-pity session, he'd have made certain to act a little more...well, perhaps a bit more 'over the top' than was usual. Anything to get a laugh out of his friend, of course. Anything to make his friend feel better if he was feeling in the dumps. As amiable as Benji was, he was just human, and not immune to feeling a bit blue now and again. So yes, he knew that it sucked. Therefore, he was intent on making sure that his friends, if he could help it, didn't get down in the dumps.
He did light up a bit when Jace mentioned getting candies for backstage. "You should! But make sure you get plenty of them. I'll be pretty bummed if they're all eaten before I get to them. Then again, I get to go on and off stage more than most, so I might be able to sneak a few more," he plotted, quite seriously.