Who said "I trusted him with everything, and he betrayed me."?

This quote is attributed to Sirius Black.

I trusted him with everything, and he betrayed me. - Sirius Black

"I trusted him with everything, and he betrayed me."

Sirius Black

Character in Harry Potter and the Prisoner of Azkaban

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"The world isn't split into good people and Death Eaters."

"Brave men don't need to kill to make a point."

"We've all got both light and dark inside us."

"Betrayal is the deepest wound."