As they are leaving the hotel What milestone does nick remember that he had forgotten in all the excitement?

As Nick and his companions leave the hotel, he suddenly recalls that it’s the anniversary of an important milestone in his life or relationship, which he had completely overlooked amidst the excitement of their trip. This realization brings a mix of nostalgia and regret, highlighting how the thrill of the moment can sometimes overshadow personal significances. It serves as a poignant reminder for Nick to balance adventure with the meaningful moments that define his life.