Why does Winston think O'Brien gave him his address?

Winston believes O'Brien gave him his address as a sign of trust and a potential alliance against the Party. He interprets this gesture as an indication that O'Brien shares his dissenting views and is willing to connect with him on a deeper level. This hope reflects Winston's desire for rebellion and the possibility of finding someone who understands his discontent with the oppressive regime. However, this belief also highlights Winston's naivety and longing for genuine human connection in a society that suppresses individuality.