Chapter 2 Part 5

Julia and Winston are now literally like a couple. No matter what they want their end to come together. "Winston and Julia would succeed in getting married. Or they would commit suicide together. Or they would disappear, alter themselves out of recognition, learn to speak with proletarian accents, get jobs in a factory, and live out their lives undetected in a back street". They don't care about the place in which they're in, as long as they're together in a safe place they're satisfied, like mentioned in the book, "Dirty or clean, the room was paradise." "As soon as they arrive they would sprinkle everything with pepper bought on the black market, tear off their clothes and make love with sweating bodies."
They were willing to do the riskiest things for each other to accomplish their lust. "So as long as they were actually in this room, they both felt, no harm could come to them. Getting there was difficult and dangerous, but the room itself was sanctuary."
Winston was confessing his biggest secrets to Julia. "He told her the strange intimacy that existed, or seemed to exist between himself and O'Brien and of the impulse he sometimes felt simply to walk into O'Brien presence, announce that he was the enemy of the party, and demand his help." As of now Winston was trusting Julia with eyes shut.
As they were chatting about things, Julia concluded "that everyone, or nearly everyone, secretly hated the party and would break the rules if he thought it safe to do so." They also discovered that the party gives themselves credit for what they haven't done. Winston remembered in the late fifties the party had only claimed to have invented the helicopter, then years later when Julia was in school, she was taught that the party had invented the airplane, "one generation more, and it would be claiming the steam engine."
Winston and Julia are now thinking of what they can do to leave some evidence for the next generation. I think this chapter of the book is one of the foreshadows of the book.