Favorite underrated lines

Rewatching and I got to the part where Ariana tells Stassi “I’m here for Katie, I don’t give a fuck about you” and I’m sorry but that line was too good I forgot how much I liked it lol. I know some people think it’s was aggressive but I was never a Stassi fan so I liked seeing someone not bow down to her and the delivery of the line and stassi’s shocked face after were just funny to me

What are some underrated lines that you love?