Inside: Bonnie overhears Damon telling Elena about the signs of a struggle in the upstairs bathroom, and the fact that Amber is missing. When Elena tries to convince herself that Stefan wouldn't hurt Amber, Damon evades the subject. "Let's just find him, okay." Bonnie follows after them.
Outside: Poor Anxiety Amber runs and runs and runs, until she runs right back into Stefan. "You said to run!" Stefan: "I changed my mind." He sinks his teeth into her neck. Her screams lead Elena, Damon and Bonnie right to the grisly scene. When Elena calls out Stefan's name, he lets Amber drop to the ground. Blood and saliva still drip from his bottom lip. He looks like a rabid animal. Damon moves in on his brother as he encourages him to breathe through it and get control, but Stefan hurls him through the air and into a tree. As Elena cries for Stefan to stop it, Bonnie realizes she must intervene. She gives Stefan the same sort of mystical migraine that Grams gave Damon when he showed up at Second Sight Shack. This is enough to call Stefan to his senses. As Damon assures him it's okay, Stefan looks at the girls and dies a thousand deaths. He takes off through the night. Commercial.
Amber's okay. Liz talks to her and then updates Damon and the girls that Amber can't remember anything. She asks Bonnie and Elena if they saw anything. Bonnie doesn't open her mouth, so Elena lies that they just found Amber like that and called Damon. Bonnie asks if Amber will be okay. Liz assures her she will and sends them back to the party.
Once they're alone, Elena tries to get Bonnie to talk to her, but Bonnie says there's nothing to talk about. When Elena pleads, Bonnie turns to face her. "I told you I wasn't going to make you choose, but I need to make the choice for myself. Please, just leave me alone." Elena watches as Bonnie gets in her car. We cut to...
Inside, Jeremy and Anna are still chatting with each other when Aunt Jenna asks him if he's ready to leave. When he asks for a moment, Jenna leaves them and smirks to herself, because she thinks her nephew is flirting with a cute young girl, instead of a cute, old vampire. Snark asks who the girl is. Jenna says she's Anna, daughter of Pearl, the woman who's trying to buy Grayson's building. Snark says he believes he already knows all about Pearl, because that won't make Jenna curious at all, will it?