Who said "Your so-called friendship means nothing to me!"?

This quote is attributed to Dr. Robotnik.

Your so-called friendship means nothing to me! - Dr. Robotnik

"Your so-called friendship means nothing to me!"

Dr. Robotnik Solitude

"I am the world's greatest scientific genius!"

"Sonic, you blue pest, I'll get you yet!"

"Roboticize the world!"

"Science is the key to ultimate power."

"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."