Sorry if Discord's color is off, I did this without my glasses on.
Okay so Discord has gotten to Lady by showing her some of her fears, so now she's all dark and depressing and she actually wants to help Discord. Here's what happened.
Lady: Discord you better leave before I open a world of hurt all over your face!!!
Discord: Do you really think that will scare me of. You may act tuff but youre really soft aren't you?
Discord: Tell me dear Lady, when do you plan on packing your things and leaving.
Lady: I dont.
Discord: Oh really? You might change your mind once your 'friends' decide to abandon you.
Lady: THEY'D NEVER ABANDON ME!!!! *fires at Discord several times but misses* Ah!!! *huff*
Discord: Careful little hybrid, you don't wanna waist all your energy trying to get me. Then again, think of all the energy your friends have wasted on trying to hurt you.
Lady: They'd never hurt me! They are trying to help me control my powers! Im trying to change for the best of everypony else!
Discord: There it is! The main problem! They are trying to change you. Aren't friends supposed to accept you for who you are and NOT change you?
Discord: My dear Lady, just look at what might happen if you keep on going the way you are.*shows Lady the future where she destroys Ponyville*
Twighlight: LADY WHAT HAVE YOU DONE!!!!
Lady: I am so sorry!!! I didn't mean for this to happen!!!
AppleJack: SHE'S JUST SPREADING MORE LIES!!!
Rainbow Dash: Lady we trusted you!
Princess Celestia: Lady, I am sorry to say this, But I here by banish you from Equestria! You're powers are just too dangerous, and you shouldn't be here!
Lady: No!!! Xhisrc! Can you help me!?!
Xhisrc: Help you? I can't even look at you right now! I tried everything, to help you control your temper, and your powers, but now I see that cannot be done>
Xhisrc: JUST GET OUT OF HERE!!!!
Lady:NOO!!! THAT CAN'T BE TRUE!!! *turns a bit grey-ish*
Discord: Hmmm, can't say I told you so-Oh wait, I can! I told you so.
Lady: They....they said they'd help me, and be my friends.....I can't believe I fell for the lies.
Discord: Well I'd never lie to you. In fact, I wouldn't change a thing about you. You can really bring chaos almost as well as me. Who needs those ponies, when you got Discord? What do ya say?
Lady: I say.........Lets cause some chaos!