He saw and heard everything as she described it.

His own relations with his father, which had been so free and friendly, made Joan's with those two old people seem fantastic and impossible.
All his sympathy went out to her.

To help her to get away appealed to him as being as humane as releasing a squirrel from a trap.

No thought of the fact that she was a girl who had rushed impulsively into a most awkward position struck him.

Into his healthy mind no sex question thrust itself.