L. M. Montgomery 
Emily’s Quest [EPUB ebook] 
classic

Life at New Moon had changed. She must adjust herself to it. A certain loneliness must be reckoned with. Ilse Burnley, the madcap pal of seven faithful years, had gone to the School of Literature and Expression in Montreal. The two girls parted with the tears and vows of girlhood. Never to meet on quite the same ground again. For, disguise the fact as we will, when friends, even the closest—perhaps the more because of that very closeness—meet again after a separation there is always a chill, lesser or greater, of change. Neither finds the other quite the same. This is natural and inevitable. Human nature is ever growing or retrogressing—never stationary. But still, with all our philosophy, who of us can repress a little feeling of bewildered disappointment when we realise that our friend is not and never can be just the same as before—even though the change may be by way of improvement? Emily, with the strange intuition which supplied the place of experience, felt this as Ilse did not, and felt that in a sense she was bidding good-bye for ever to the Ilse of New Moon days and Shrewsbury years.