If you take an evolunistic view of psychology, being monogamous is the best way to ensure survival, especially from a female's standpoint. If your man is only with you, then he is only focusing on providing for you and your family. The more other people he's with, the greater the chances he's going to have to spread out the support you're getting.
__________________
Calling from deep in the heart, from where the eyes can't see and the ears can't hear, from where the mountain trails end and only love can go... ~~~ Three Rivers Hare Krishna
|