This was Isaac's desperate attempt to save himself from embarrassment.
Even if it was self‑deception, he had to maintain the act.
Ray, however, ignored him completely. Patting Isaac on the shoulder, he said, "Why bother with food? Just take me to the room. Strip her naked so I can have a look—let me be clear: if I'm not satisfied, I'm walking out immediately."
Isaac's face went through a storm of colors—red, then white—shame and rage warring in his eyes. Yet somehow, he forced a tight smile a