Right, this won't be the best, so sorry in advance!
I'll use generic names, ie. John and Mia, change if you wish! The theme will be "Friendships don't always last"
Once again, so sorry! Also, I've done "lines" as in one character speaking mulitple sentences counts as a line, if they're said one after the other. And a stage direction equals a line. You'll see. Tweak if needed (which it will be)
(Mia is alone, sitting on a couch, book in hand. John enters the room, stomping, clearly unhappy)
JOHN: MIA!
(Mia's head snaps up)
MIA: What is wrong with you?!
JOHN: How could you? I trusted you!
MIA: What are you talking about?
(John scoffs)
JOHN: Really? That's what you're going with? The clueless victim? We've been friends for, what? Seven years? I know when you lie.
MIA: Lie about what?!
JOHN: About me not meeting the requirements for uni, that's what?
(Mia laughs)
MIA: That's why you're yelling? About me joking around? Did you really believe me?
JOHN: Yes-yes, I did. Because I trusted you. Joking around does not last for a month, Mia. You weren't joking, and thanks to you, I can't apply for university.
(Mia snorts)
MIA: Not my fault you can't take a joke, John.
JOHN: Not my fault you can't tell a joke, Mia.
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So sorry about this, but, whatever.