Lori Grimez
Just the fact she sleeps with the Antagonists mainly. Her judgement is poor. How is that gonna look for her when she's sleeping with the Governor who is keeping her friends captive and possibly planning on killing the others. She's gonna be conflicted and he's gonna use that against her.
Everyone in The Walking Dead has made terrible choices. It's part of the show. Andrea is a
single woman who yes, has terrible choices in men, but she doesn't know that. We as viewers get to see the sides of characters that others might not see. I'm sure at some point Andrea will learn the hard way that the governor is a freak and yes, she'll be conflicted. Who wouldn't be? On one hand, she has to choose between a good group, but a group that left her behind to die. On the other hand, she's with a demented man, but he wants her in his group. I'd say that anyone would have trouble with the choice of going where either one is safe or where one is wanted.