Who said "Hulk wants to be left alone."?

This quote is attributed to Hulk (The Avengers).

Hulk wants to be left alone. - Hulk (The Avengers)

"Hulk wants to be left alone."

Hulk (The Avengers) Solitude

"Puny god."

"You want a Hulk? You're looking at a Hulk right now."

"I'm always angry."

"That's my secret, Captain. I'm always angry."

"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."