Who said "Being alone isn't the same as being lonely."?

This quote is attributed to Black Widow.

Being alone isn't the same as being lonely. - Black Widow

"Being alone isn't the same as being lonely."

Black Widow Solitude

"I'm not the only monster in the room."

"It's never too late to start over."

"We all have our secrets. The question is what we do with them."

"Family is complicated, but it's all we have."

"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."