This is how Trixie vs. Twilight and Curing Twilight goes in The Enemy Within The Sparkle.
[Twilight readies her magic]
Twilight Sparkle: I warned you.
Trixie Lulamoon: Yeah you did. So I know you're still in there, you gotta fight it, Twilight. You gotta fight it. Otherwise you ain't any different than...than Thunderwing.
Twilight Sparkle: Thunderwing? No.
[Twilight has a flashback, which shows Thunder Streak becoming Thunderwing after he grew jealous of being called a "Moon Lover"]
[Flashback ends as Twilight widens her eyes and shakes her to try and fight the nano-bot, whilst trying to prevent herself from firing at Trixie. Trixie watches]
Trixie Lulamoon: Prove it. Come on, Twilight. Remember who you are. What we are.
Twilight Sparkle: I do, Trixie.
[Twilight shuts her eyes. Twilight loses consciousness as Trixie levitates her and places her on her back]
Trixie Lulamoon: Come on, let's get you home.
[Using her magic, Trixie helps Twilight back home]
Trixie Lulamoon: I got her.
Starlight Glimmer: Stormer, give her the antidote now.
Rainbow Dash: This stuff worked on you, right?
[Twilight breaks free from Trixie's grip and lands on the floor]
Stormer: Let's hope so.
[The heroes prepare to fire when Trixie steps in front of them]
Trixie Lulamoon: Wait, look.
[Twilight calms down and her eyes turn to normal]
Twilight Sparkle: Thanks, Trixie.
Trixie Lulamoon: You're welcome. Took some thinking.
Twilight Sparkle: I know, I'm thanking you for destroying the poster. I really hated that thing.
Twilight Sparkle: Neither. It was a monster who sent Meltdown to try and destroy me.
[At a black hole, Von Nebula watches]
Von Nebula: [groans] So the magic in her survived, which means Twilight has aluted me once again. But I will have my revenge. Twilight will be crushed, but this time, Equestria will see the return of Von Nebula.
[He vanished into the shadows]