What is that ONE QUOTE from ur fav manhwuga or novel that deeply illustrates the characters dynamics

Idk how to explain this question but an example would be,

"if Anastasia disappears, I'm finished. this is my air, my weakness and my secret weapon that makes me the strongest in the world. now Anastasia is in front of my eyes."
from Codename Anastasia


Personally mine is (rainbossi novel spoilers)
On Major Kwak (the seme's side): "If there was a god, he was truly a mean person. He brought someone who was the complete opposite of me in front of me and made him fall for me in a nice way. I was in pain every time Seokhwa got sick, but I was happy if he could just breathe next to me. I wish he didn’t get sick, but if he really got sick, I wanted it to be right in front of me. If I thought Seokhwa was sick when I wasn’t around, it would be like my whole body and soul being twisted."

On Dr.Seok (the Uke's side): " After my mother passed away, I gave up and lived, thinking that there would be no one who would understand me.
However, Kwak Su-hwan changed me. He was the kind of person who would force open a door and smash it.
And I may have waited for such a person for a long time."

Anyways I WANNA KNOW YALLS SO SPILL