I just like her character. Lilly is frustrating and Carley is in my opinion the last important character in the game.
Kenny's wife is a down to earth character and I feel she is the best female character in the game (well, Clem too). I don't know how the series end will go, but I'm hoping it's Lee, clem, Kenny, his wife/duck (duck can be annoying) finding some safe haven away from all the issues.
Knowing a game full of zombies, though, one that also isn't too happy going, I would bet that everyone will die except for Clem/duck/Lilly (I have a feeling she will live the whole game) and that they won't have a happy ending.