This is how Starlight vs. Twilight goes in Thunderwing's Return.
[Starlight stares at her corrupted teacher]
Starlight Glimmer: Twilight! You can't do this!
Twilight Sparkle: Why not?! There's a whole other world out there and it's just filled with magic!
Starlight Glimmer: But you're destroying Equestria to get it!
Twilight Sparkle: So what?! There's more magic there and I WANT TO UNDERSTAND IT ALL!!!!
Starlight Glimmer: Twiligh, this is not the way. I've been where you are and made the mistakes you're making.
Twilight Sparkle: Don't lecture me, Starlight. I see through the lies of my friends. Now I'm gonna make them pay for shunning me and rejecting my friendship.
Starlight Glimmer: What?! They never did that!
Twilight Sparkle: Thunderwing told me they were!
Starlight Glimmer: Thunderwing's the one who's lying, not them!
Twilight Sparkle: From my point of view, they're the ones who are lying not him!
Starlight Glimmer: Twilight, you have to listen to me.
Twilight Sparkle: Don't make me kill you.
Starlight Glimmer: Twilight, please, I don't wanna kill you either.
Twilight Sparkle: If you're not with me, then you're my enemy.
Starlight Glimmer: Twilight, you don't know what you're doing.
Twilight Sparkle: You will try.
[Starlight and Twilight start fighting]
Starlight Glimmer: Twilight, stop this! Your thinking is all wrong!
Twilight Sparkle: I should have known my friends were going to reject me.
Starlight Glimmer: Twilight, Thunderwing is evil!
Twilight Sparkle: From my point of view, my friends are evil!