One thing that stuck out to me was how often Catherine's hair was described and praised by Henry. During one of her night shifts working at the hospital, Henry takes her hair down, pin by pin, and when she leans down, he describes her hair being all around them as "the feeling of inside a tent or behind a falls." I think that that statement represents their love as a whole; their love is private and behind closed doors. They are really only truly happy when they are alone together. The war is going on and their side is losing, yet when they are alone, nothing can upset them. They isolate themselves from everything and indulge in their own happiness.