Sometimes The Good Comes With A Little Sadness

Yesterday, I happened to catch a coincidental rerun of one of my favourite childhood TV series, and at the end of the episode, after the leading characters of the show successfully triumphed over the current week's antagonist, they were seated together and toasting to their success. During the toast, Character C suddenly looked very sad in which the following dialogue was exchanged between the trio.

Character B:

"What's the matter honey?"

Character C:

"The last time I was here, I was here with Finn..."

(Finn is the innocent whom Character C fell for, but died in mid battle during the climax of the episode.)

Character A & B: [sympathetic silence]

Character C:

"How do you guys get over these things?"

Character A:

"You don't."

Everybody: [silent]

Character A:

"But you learn with experience that you can't dwell on the losses." 
"You kinda have to..."

Character C:

"Harden your heart?"

Character A:

"Pro-tect your heart." 
"And unfortunately, the fact of our lives is that sometimes the good comes with a little sadness."