only an affectation of singularity?

Poor Lucy stared at her cousin in helpless amazement. Talbot Bulstrode found himself falling back into that state of bewilderment in which this girl always threw him. What did she mean, this heiress of nineteen years of age, by her fits of despondency and outbursts of bitterness? Was it not perhaps, after all, only an affectation of singularity?
Aurora looked at him with her brightest smile while he was asking himself this question. “You will come and see papa?” she said.
Captain Bulstrode declared that he desired no greater happiness than to pay his respects to Mr. Floyd, in token whereof he walked with the young ladies toward the East Cliff.
From that morning the officer became a constant visitor at the banker’s. He played chess with Lucy, accompanied her on the piano when she sang, assisted her with valuable hints when she painted in water-colors, put in lights here, and glimpses of sky there, deepened autumnal browns, and intensified horizon purples, and made himself altogether useful to the young lady, who was, as we know, accomplished in all lady-like arts. Mrs. Powell, seated in one of the windows of the pleasant drawing-room, shed the benignant light of her faded countenance and pale blue eyes upon the two young people, and represented all the proprieties in her own person. Aurora, when the weather prevented her riding, occupied herself more restlessly than profitably by taking up books and tossing them down, pulling Bow-wow’s ears, staring out of the windows, drawing caricatures of the promenaders on the cliff, and dragging out a wonderful little watch, with a bunch of dangling inexplicable golden absurdities, to see what o’clock it was.
Talbot Bulstrode, while leaning over Lucy’s piano or drawing-board, or pondering about the next move of his queen, had ample leisure to watch the movements of Miss Floyd, and to be shocked at the purposeless manner in which that young lady spent the rainy mornings. Sometimes he saw her poring over Bell’s Life, much to the horror of Mrs. Walter Powell, who had a vague idea of the iniquitous proceedings recited in that terrible journal, but who was afraid to stretch her authority so far as to forbid its perusal.
Mrs. Powell looked with silent approbation upon the growing familiarity between gentle Lucy Floyd and the captain. She had feared at first that Talbot was an admirer of Aurora’s; but the manner of the two soon dispelled her alarm. Nothing could be more cordial than Miss Floyd’s treatment of the officer; but she displayed the same indifference to him that she did to everything else except her dog and her father. Was it possible that wellnigh perfect face and those haughty graces had no charm for the banker’s daughter? Could it be that she could spend hour after hour in the society of the handsomest and most aristocratic man she had ever met, and yet be as heart-whole as when the acquaintance began? There was one person in the little party who was for ever asking that question, and never able to answer it to her own satisfaction, and that person was Lucy Floyd. Poor Lucy Floyd, who was engaged, night and day, in mentally playing that old German game which Faust and Margaret played together with the full-blown rose in the garden —“He loves me — loves me not!