They lie hidden in her heart, gradually permeating her thoughts until her whole attitude towards the man in question has hardened and the old footing between them become irrecoverable.
Nan felt that she had made her effort--and failed.

Roger had missed the whole meaning of her attempt to bring about a mutual feeling of good comradeship, brushed it aside as of no importance.

And instead, he had substituted his own imperious demands, rousing her, once the stress of the actual interview itself was past, to fierce and bitter revolt.

No matter what happened in the future, she must get away now--snatch a brief respite from the daily strain of her life at the Hall.
But with an oddly persistent determination she put away from her all thought of breaking off her engagement.

To most women similarly situated this would have been the obvious and simplest solution of the problem.