Interesting articles. I don't have enough information to judge their veracity, but the first book seems genuinely enlightened. The second book is downright demonizing, and I hope there is a better balance out in the real world than what is portrayed. I noticed that many of the examples he cites are from England and Australia.
I think both women and men are attracted to what they can't have. The bad boy sometimes, but I think it is more the forbidden fruit. Certainly, forbidden fruit always tastes the sweetest!
I always think it is an unfair assumption to blame decisions such as infidelity on biology. We are not unthinking animals simply driven by raging hormones. I buy the boredom vs. excitement theory more than biology.