The necessity of accepting this view of their past relation, and of meeting it in the key of pleasantry prevalent among her new friends, was deeply humiliating to Lily.
Chance, or perhaps his own resolve, had kept them apart since his hasty withdrawal from Bellomont; but Miss Bart was an expert in making the most of the unexpected, and the distasteful incidents of the last few minutes—the revelation to Selden of precisely that part of her life which she most wished him to ignore—increased her longing for shelter, for escape from such humiliating contingencies.
Lily had no desire that they should recognize any social difference in her; but she had hoped to be received as their equal, and perhaps before long to show herself their superior by a special deftness of touch, and it was humiliating to find that, after two months of drudgery, she still betrayed her lack of early training.
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She felt humiliated by his public insults.
She’s convinced PE class was invented to humiliate innocent kids.