Tyler/Caroline: The Descent
If I had to choose between this scene or the kiss, I would have kept this scene. But keeping both wouldn’t have worked because Tyler would look super bad in his final scene with Caroline. Also, someone mentioned that keeping this scene would be bad for Tyler either way because of how he reacts when Caroline is captured by the werewolves.
Luka/Bonnie: By The Light of The Moon
Jeremy/Elena: By The Light of The Moon
Why would they cut this?! Had they kept this scene, it would have led to a follow-up where Elena would’ve talked to Bonnie. But instead they seem to want me to think Elena is self-absorbed and rarely considers Bonnie. I also like Elena being mad at Bonnie for trapping her in the house. Maybe this scene would have led to Elena talking in depth about her suicide mission! Instead what we got was Elena accepting being trapped and sulking. Or something.
Stefan/Katherine: By The Light of The Moon
This Stefan/Katherine scene would’ve been good and it actually fits with the synopsis of the episode which said: Stefan and Katherine play mind games with each other. Instead of just Katherine playing one mind game on Stefan.
Remember when Ony and I complained about no one asking Jeremy why he wanted to kill himself?
Stefan/Jeremy: The Return
What I find even more disappointing is that when they cut scenes like the Jeremy/Elena one, or the Stefan/Jeremy scene, or the Bonnie/Stefan scene from season 1, they don’t look for another opportunity to make the essence of the scene happen in canon. So instead of Stefan asking Jeremy why he wanted to die, it could have been brought up here when Jeremy found out Elena was trying to die. And Bonnie’s weakness could have come about in a conversation between Elena/Bonnie when Bonnie found out the truth (onscreen) about Luka.
There are some more, but I only posted the ones I deemed relevant. The others can be found on the person’s youtube page.