Au revoir." This was the end of the first phase of Paul's love affair.

He was now about twenty-three years old, and, though still virgin, the sex instinct that Miriam had over-refined for so long now grew particularly strong.
Often, as he talked to Clara Dawes, came that thickening and quickening of his blood, that peculiar concentration in the breast, as if something were alive there, a new self or a new centre of consciousness, warning him that sooner or later he would have to ask one woman or another.

But he belonged to Miriam.

Of that she was so fixedly sure that he allowed her right..