The Vampire Diaries gang is comparing the ways in which Katherine (Nina Dobrev) fooled them in this sneak peek over at E! Online for Season 5, Episode 15 (“Gone Girl”) — and it’s pretty amazing. Katherine really did go above and beyond in her performance of Elena, and you can tell the gang kind of respects her a little bit for that.

“Katherine is a passenger in Elena, except it’s worse because none of us seem to notice,” Caroline declares in a meeting of Elena’s loved ones held in the Salvatore living room.

Tyler looks confused: “She was at my house. How did none of us figure it out?”

“Because it’s Katherine,” Caroline replies, “and she’s smart and conniving and sneaky and we’re the worst friends ever.” We knew Care would take this one hard. She prides herself on being a stellar friend, and this is a total friend fail.

Jeremy and Bonnie are attending the meeting via speakerphone, but they’ve still picked up on the group’s air of disbelief: “This makes no sense,” Jeremy says. “She saved my life. She gave me CPR when Enzo tried to kill me. Katherine would never do that.” Jer’s right. If you’ll recall, Katherine totally tried to get out of saving Jeremy’s life, but Nadia convinced her it would be a dead giveaway.

Bonnie, sitting next to Jeremy on a Whitmore College bench, makes sense of Katherine’s uncharacteristic actions for Jer: “That’s what made her so believeable. She played Elena to a tee. If she let you die, her cover was blown.”

Caroline’s still not over this. “I was sleeping three feet away from her,” she laments. “She picked up my Bitter Ball dress. And I let her use my toothpaste.” We love that picking up her Bitter Ball dress makes the list of things that Caroline deems displays of utmost trust.

Stefan comes into the room, presumably after having told Damon the news. He thinks he has everyone beat: “Yeah, well did she lure you into a hotel room to makeout with you?” Ha. Winner!

Catch the next episode of The Vampire Diaries on Thursday, March 6 at 8 p.m. ET on the CW.

Kayti Burt is a contributing writer for Wetpaint Entertainment with a penchant for all things pop culture. Follow her on Twitter and Google+!