Twilight, Applejack and others in “Unfinished Business”

Twilight

And I'm sure it's the result of being an awful pony who doesn't deserve to even know Shining Armor let alone marry him!

Applejack

Think maybe you're being just a tiny bit possessive of your brother?

Uh-huh.

Twilight

I am not being possessive, and I am NOT taking it out on Cadance! You're all just too caught up in your wedding planning to notice that maybe there shouldn't even [pounds hoof on table] be a wedding!