Strether knew well enough with what Chad wished him to compare it, and though he entirely assented he hadn’t yet somehow been so deeply reminded that he was being, as he constantly though mutely expressed it, used. He was as far as ever from making out exactly to what end; but he was none the less constantly accompanied by a sense of the service he rendered. He conceived only that this service was highly agreeable to those who profited by it; and he was indeed still waiting for the moment at which he should catch it in the act of proving disagreeable, proving in some degree intolerable, to himself. He failed quite to see how his situation could clear up at all logically except by some turn of events that would give him the pretext of disgust. He was building from day to day on the possibility of disgust, but each day brought forth meanwhile a new and more engaging bend of the road. That possibility was now ever so much further from sight than on the eve of his arrival, and he perfectly felt that, should it come at all, it would have to be at best inconsequent and violent. He struck himself as a little nearer to it only when he asked himself what service, in such a life of utility, he was after all rendering Mrs. Newsome. When he wished to help himself to believe that he was still all right he reflected—and in fact with wonder—on the unimpaired frequency of their correspondence; in relation to which what was after all more natural than that it should become more frequent just in proportion as their problem became more complicated?