she felt acutely uncomfortable with him , her tension compounded of several different things : uppermost was anger that he had dared to pry into her life the way he had ; a fair amount of guilt , for she knew she owed him at least an explanation , and the truth was still both painful and embarrassing ; a sort of wistfulness , because she had enjoyed so much about him ; and desire -- god , yes , a frustrated desire that had been feeding for months on the memory of that one night they had spent together .