Why does Winston tell Julia the more promiscuous she is the more i love you?

Winston tells Julia that the more promiscuous she is, the more he loves her because he views her sexual freedom as a form of rebellion against the oppressive regime of the Party. Her willingness to engage in relationships outside of societal norms symbolizes a defiance of the Party's control over personal lives and desires. For Winston, Julia's actions represent a shared resistance and a deepening emotional connection, as they both seek to reclaim their individuality in a repressive world. This statement reflects his admiration for her courage and the bond they share in their rebellion.