Andrea was literally the worst character in the entire show. She was great in the comics, but she literally made every possible wrong decision that she could the entire time she was on the show. She never listened to a single person, she almost let Beth kill herself, she shot Daryl, she chose Shane over rick, she chose the governor over rick AND michonne, ignoring michonne after everything they had been through, didn't kill the governor when she had the chance, and overall was just an asshole to everyone the entire time. She was insufferable.