Your friend is single and dating.
Dating is tough these days.
But she goes out with a lot of guys.
You're having a dinner party and inviting a lot of couples.
You don't invite her.
She finds out and is hurt.
You tell her it's because she always brings one of the guys she's dating and that they are all, well, losers.
Yall fight but it ends up that you invite her to the party.
She brings a date.
Dude is handsome, charming, funny and plays the piano well.
Later you find out that the dude is a paid escort she hired to come with her and be charming and awesome.