That adventure on the country road, when he had discovered Swann with Helen instead of Lorna, had somehow been a boon.
Nevertheless he spied upon Lorna in the summer evenings when it was possible to follow her, and he dogged Swann's winding and devious path as far as possible.

Apparently Swann had checked his irregularities as far as Lorna was concerned.

Still Lane trusted nothing.

He became an almost impassive destiny with the iron consequences in his hands.
Days passed.

Every other afternoon and night he spent hours with Bessy Bell, and found a mounting happiness in the change in her, a deep and ever deeper insight into the causes that had developed her.