I am with you 100% on this one. It is true that men are more visual. Also, her holding on to the love letters has more of an emotional attachment than a sexual one. As a guy, if I'm in a relationship, I'm not as worried about my partner having a sexual fling as I am her getting emotionally attached to someone else. The emotional content is what would bother me because her affection is now being split and I would not be the focus of it anymore. At that point it would be time to go our separate ways.