My thoughts followed a somewhat different path. The girl feeling the presence of the eternal feminine in the fruitful orange tree, the boy not satisfied with the tree just being, bearing the light of the eternal, but must find something concrete, evidence of male feelings and explorations. Yes, a failure to understand.
It also reminded me of something at a lower level, done by James Thurber years ago, when he expressed the male-female difference in viewpoint in his cartoons, "The War between Men and Women."