As to Liz, I'd say that the character is about to graduate and enter the real world, cheer is done for the season now that the NCAA tournament is over (though I might be wrong and there are cheerleading competitions) but she's a senior and she's basically having a senioritis thing, particularly as pertains to Tyler Bose and the usual dating scene. Feel free to do what you will there, basically, it was meant to create a tense sort of drama on several fronts.