What Mr. Lush intended was to make himself indispensable so that he might go too, and he succeeded; Gwendolen's repulsion for him being a fact that only amused his patron, and made him none the less willing to have Lush always at hand.

Mr. Lush intended to make himself indispensable in order to go too, and he succeeded; Gwendolen's repulsion for him being a fact that merely amused his patron, and made him none the less willing to have Lush always at hand.
