Why would a man spray a ladies pillow with his aftershave after he is left and then tell her later he did it?

A man might spray a woman's pillow with his aftershave as a way to leave a lingering scent, creating a sense of intimacy and connection even after he has left. By telling her later, he could be expressing affection and a desire to be present in her thoughts, making her feel special and remembered. This gesture could serve as a romantic or playful way to maintain emotional closeness despite physical distance.