Who said "A true friend would sacrifice their own happiness."?

This quote is attributed to Olaf.

A true friend would sacrifice their own happiness. - Olaf

"A true friend would sacrifice their own happiness."

Olaf Friendship

"Some people are worth melting for."

"I like warm hugs."

"Hi, I'm Olaf, and I like warm hugs."

"You can't marry a man you just met."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."