Army life isn't real life.

It's army life.

To an army man a girl is a girl, and what they mean by a girl has nothing to do with being a thinking being.

Then what business has a man like you--I don't know who you are or what you're doing, but I believe you have some ideas about the real things of life--tell me, please--what business have you jeering at me ?" "I have no business jeering at you," he said quickly, simply and strongly.
But Katie had changed.

He had a fancy that she would always be changing; that she was not one to rest in outlived emotions, that one mood was always but the making and enriching of another mood, moment ever flowing into moment, taking with it the heart of the moment that had gone.