She believed he was speaking the truth, so far as he knew.

But at the same time she realized from her own experience that Arthur might as easily deceive himself as Diana in his estimate as to the warmth of the devotion he displayed.

His nature was impetuous and ardent.

That Diana should have taken his attentions seriously and become infatuated with the handsome young fellow was not a matter to cause surprise.
Gradually Louise felt her resentment disappearing.

In Arthur's presence the charm of his personality influenced her to be lenient with his shortcomings.