Considering that the story is basically a snapshot of one Christmas, when John's lover, Robert, a bomber pilot finally comes home to spend Christmas with John ... it just feels more poignant to me rather than sweet. Yes, it was lovely, but I couldn't help to think that the war wasn't over yet for these two men. It will be better for my heart if I can read about them after the war, to know that Robert is safe and sound and be with John.
Having said that, the writing is good, the characters shine, and the emotion feels real. For a short story, this packs quite a punch!