Oh, Serena. Serena, Serena, Serena. Let’s quickly run through the worst things she did: she had sex with Nate when he was dating her best friend, she had revenge sex with Dan and RECORDED IT to hurt Blair, she gave cocaine to a drug addict causing his overdose, she messed with Rufus and Lily’s relationship by siding with her father WHO CONVINCED LILY SHE HAD CANCER, she hurt Blair’s chances of going to her dream school, and she constantly undermined people whenever they got more status than her (Blair, Lola). Serena was a terrible person and friend 90% of the time, and the worst part was she always pretended like she was better or was trying to put the past behind her, but she never actually did. Honestly, her and Dan kind of deserved each other.