As a veteran it holds true to personal experiences.
As a love story it brought to mind The Notebook, Somewhere in Time, and Sweet November (1968). As deeply as Artie and Maggie loved each other, there was always Charlie. Charlie whom Artie took on the guilt for his death and the guilt of taking his girlfriend. Never being to truly reconcile how much Maggie needed Artie as well as Artie needing Maggie.