"Has it ever struck you," he asked, "that you are very unlike other women ?" "Oh, how ever could you have found that out ?" she exclaimed, amazed.
Almost before he knew how it came about, he was on terms of very pleasant sentiment with this girl, for they now shared between them a secret that he had confided to no other.

His face, which had been so much against him hitherto, was at last in his favour; it showed so plainly that when he looked at her more softly or held her hand longer than is customary, he was really thinking of that other of whom she was the image.

Or if it did not precisely show that, it suggested something or other of that nature which did just as well.

There was a sweet something between them which brought them together and also kept them apart; it allowed them to go a certain length, while it was also a reason why they could never, never exceed that distance; and this was an ideal state for Tommy, who could be most loyal and tender so long as it was understood that he meant nothing in particular.

She was the right kind of girl, too, and admired him the more (and perhaps went a step further) because he remained so true to Felicity's memory.
You must not think him calculating and cold-blooded, for nothing could be less true to the fact.