what does the demon lover sees himself and how he thinks others sees himself

Although we see the soldier-lover only through Kathleen Drover's memories, he is a significant character. He treats her thoughtlessly, pushing her hand painfully onto his uniform breast buttons when she reaches to touch him and making her a promise that "I shall be with you . . . sooner or later. You won't forget that. You need do nothing but wait." He is reported "missing, presumed killed" in action in World War I.