Nerds!

"And the thing is, Liz’s confrontations with her worst qualities have actually strengthened her. That’s what so odd about the backlash. This season, Liz is happier than ever—and for once, she’s rejecting Jack’s influence, finding her own bliss, embracing her oddball nature, going on the Oprah-style vacations she feels like taking. Unbeknownst to Jack, she began dating a cute younger guy who made no money, had a stupid career path, but treated her well. Of course, when Jack found out, he judged her for this, got inside her head, and made fun of her boyfriend’s name (which is, to be fair, Criss Chros). But then Liz realized that she actually likes Criss and was an idiot to dump him for shallow reasons; i.e., Jack’s reasons. She goes back to him, against Jack’s advice."

Emily Nussbaum at The New Yorker defends 30 Rock's Liz Lemon.