Sex is cheap. Coupled sexual activity has become more widely available than ever. Cheap sex has been made possible by two technologies that have little to do with each other – the Pill and high-quality pornography – and its distribution made more efficient by a third technological innovation, online dating. Together, they drive down the cost of real sex, and in turn slow the development of love, make fidelity more challenging, sexual malleability more common, and have even taken a toll on men’s marriageability.

The Fight of Your Life : Manning Up to the Challenge of Sexual Integrity
There’s a War going on for the souls of men! The Fight of Your Life