http://therationalmale.com/2012/02/28/fidelity/

As a man approaches the age of his sexual market peak potential there comes a shift in the order of priority of his position in sexual strategy advantage. Most men never actualize this. For the majority of men, that is to say the 80%+ of Beta men who’ve accommodated the female sexual strategy prior to realizing their SMV potential, this can be an aggravating period of their lives.

Often men are bound to financially and emotionally binding commitments to women well before that peak potential is realized. This is by design of course; a design with the intent of ensuring the long term security of women exiting the short-term sexual imperatives of their Party Years. The Feminine Imperative effects this via social engineering, but few men understand that they could ever have a greater SMV potential they might realize once they mature into it prior to making those commitments.