Okay, another one of my wacky ideas. Here we go:

Hamilton:

Eliza: Thank you for your service.
Hamilton: If it takes fighting a war for us to meet, it will have been worth it.
Angelica: I'll leave you to it!
(Cut to Angelica in a room, alone)
Angelica: (to audience) Yeah, I'm gonna be fine... NOT!

Heathers:

Veronica: (Pukes on Heather C.)
(Cut to Heather in a room, alone)
Heather: (to audience) (speechless wild gesticulating)

Rent:

Mimi: I'll let you make me ouuut tonight, tonight, tonight, tonight! (Kisses Roger)
(Cut to Roger in a room, alone)
Roger: (to audience) Who does she think she is?! This girl, who I barely even know just breaks into my house and is like "Hey, let's get drunk and high"?! Unbelievable.

In The Heights:

Nina: YOU GUYS! I dropped out...
(Cut to the salon girls in a room, alone)
Daniela: (to audience) Well...that was... NOT what we expected.