‘The Roommate’ Proves To Be Darkest Episode of ‘Gossip Girl’ Yet

I’m not so into scary movies (read: I’m a pussy), but I might have to make an exception for this flick because a) it doesn’t look scary, and b) it’s Single White Female with BLAIR WALDORF. If ever there was a winning Hollywood pitch, it’s that. Let’s face it: for years Blair has threatened to …