Honestly, how can they be surprised about that? I once saw an interview were he didn't want to answer whether or not he has a girlfriend, but that's just like saying 'yes I do, but I don't want to lose any fans who think they might have a shot'
That's a pity - I sure understand the uproar!
I don't think I've seen it though. I should really learn to use Twitter - and Tumblr, for that matter; I wanted to see the pics and have now 'Darren Criss girlfriend' in my search history without even results to make up for it