This episodes firmly establishes that the timeline of The Vampire Diaries and The Originals currently takes place in 2012 when Damon tells Bonnie he doesn't remember where he parked his car eighteen years ago.
This is the first time since You're Undead To Me that we'll see Elena in a bikini. Though it was only the bikini top, as she was wearing jean shorts. The bikini Nina wears in this episode is her own, like it was in You're Undead To Me.
Stefan and Elena's breakup was referenced by both of them in a conversation with Liam. They broke up in We All Go a Little Mad Sometimes, when Elena admitted to Stefan she had feelings for Damon.
Hashtag during the airing was #StefansRevenge