Hello, and welcome back to "Demonic Possession Is a Real Thing" Part 3. The palpable hatred in No. 1 led to the blood bath in No. 2, so at this point, we're basically kicking an extremely dead (but still sparkly) horse.
We're transported back in time to the Season 3 reunion, and as you'll recall Jacqueline wasn't there. Caroline explained that the "incident last night" kept her from attending, and now, a year later, we finally know what that was.