but here was something more; here was that elasticity of mind, that disposition to be comforted, that power of turning readily from evil to good, and of finding employment which carried her out of herself, which was from nature alone. (Ch. 17)

I take the “elasticity of mind” comment as Anne’s voice: “Yet, in spite of all this, Anne had reason to believe…” I don’t think she is criticizing herself or Frederick so much as simple admiration of Mrs. Smith’s natural ability. Also realizing or acknowledging perhaps she and Frederick brought on some of their own misery. I think Anne, although she kept herself employed, was not ever carried out of herself and turning readily from evil to good in his understanding of Anne’s character was difficult for Frederick. Neither one of them were of a disposition to be comforted either in the choice of another partner. Anne had a heart only for him (Ch. 4) and she was still his model of the perfect woman per Ch. 7. (: D)