She seeks out Jack on the bow of the ship, where they share a passionate kiss.  At this point, Rose is uninhibited, completely and happily throwing herself into her feelings.  She has Jack draw her nude, wearing only the massive diamond necklace Cal gave as an engagement gift.  Together they gigglingly flee as Cal's manservant chases them through the ship until they end up in a cargo hold.  There Rose pulls Jack into a car, where they make love. The two happily continue their run from Cal's spies.  Rose tells Jack that - though she knows it's crazy - when the ship docks, she's getting off with him.  It's of course at this hopeful point that doom rears its head; moments later Titanic hits the iceberg and begins to sink.

Jealous over the affair, Cal frames Jack for stealing the diamond; the arrested Jack is locked in the bowels of the ship, trapped as the water rises.  Like Padmé, Rose chooses to leave assured safety - a lifeboat - to venture into a dangerous underworld, this one of icy water instead of fire, to rescue her lover.  Once he's recovered Rose again has the chance to get on a lifeboat, but she jumps out and back onto the ship, unwilling to leave Jack.  The two are chased back into the depths of the ship by a murderous Cal.  They barely survive the sinking, ending up in the freezing ocean with 1500 other people.  They find a piece of floating debris, but it's only big enough to hold one, so Jack lets Rose get on top of it, himself staying in the icy water.  As they wait for a lifeboat, Rose tells Jack she loves him, and Jack makes Rose promise she'll survive and live a full life.  Eventually a lifeboat comes - but Jack has already frozen to death.  A heartbroken Rose has to leave him behind to make it to the lifeboat.  As she watches his body sink into the water, she vows to keep her promise.  When she reaches New York, she starts a new life with his name - Rose Dawson.

In present day, Rose concludes her tale by saying that though there's no record of him, Jack did exist, and he saved her in every way possible.  That night, Rose sleeps next to the pictures of her life, which show her having done all the things she dreamed of doing with Jack, all the things he predicted she'd live to do.  In her sleep she finds herself back on Titanic, a young woman again - and Jack, also young, waiting for her on the Grand Staircase.

External tragedy ultimately tore Jack and Rose apart, but their own human failings may have contributed to it. There's no guarantee Jack would have made it off Titanic even in 'ideal' circumstances - as both a man and a member of third-class, demographics that saw the highest mortality rates in the sinking, the odds were already stacked against him. But his chances certainly were not helped by Rose's impetuous eagerness - and his own willingness - to provoke her fiancé's dangerous anger, or her blind desperation to not be parted from Jack for even a moment. The repercussions of these events - Jack's arrest, getting chased back into the ship - cost much valuable time that might have increased his chances of getting to a lifeboat. And Rose, who as a first-class woman had every opportunity to get into a lifeboat, still ended up nearly perishing.

Like SW, though, Titanic also ends up being a tale of redemption. Rose does nearly choose to die along with her lover, but ultimately is able to let go of him (though not her promise to him). She also chooses to cast off the chains of her old imprisoning life and take her chances at starting over anew. And at the end of that life, she is rewarded by being reunited with the love taken from her.