But every night I let him into my bed. We manage the darkness as we did in the arena, wrapped in each other’s arms, guarding against dangers that can descend at any moment.
(Gif not mine)
In the first movie, they were lying down on the ground. They seem to have modeled this scene on the book cave scene (leaning back against the wall instead of lying down… the position described in this quote). :)
There’s a popular belief that Titanic's male lead, Jack Dawson (Leonardo DiCaprio), was a figment that Rose Dewitt Bukater created due to having an abusive fiancée. Rose made Jack up to muster enough courage to finally stand up and leave Cal for good. This theory explains why there are no records of Jack and why the elderly Rose said, Jack “exists only in my memories.”
Post Traumatic Stress Disorder: a condition of persistent mental and emotional stress occurring as a result of injury or severe psychological shock, typically involving disturbance of sleep and constant vivid recall of the experience, with dulled responses to others and to the outside world.