Who said "Monsters are scary, but so is being alone."?

This quote is attributed to Boo.

Monsters are scary, but so is being alone. - Boo

"Monsters are scary, but so is being alone."

Boo Solitude

"Kitty!"

"I like your hair. It's funny."

"You're my friend. My best friend."

"Don't let them scare you. You're brave."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."