Something else I thought I'd throw in as to why I think MH maybe right and we tend to end our stand more so than women:
I had my own little MLC in 2009. Although a one sided EA, which admittedly is worse, I never went into a PA. Looking back, I guess there were times I might have tested the waters to see if I was attractive and could land in a PA. Never could follow through. Came to the realization no matter how much desire I had to "sew those wild oats", I was not the type to stray. Ended up a wallower.
BUT...I recognize that the one-sided EA was a CHOICE. Yes, I may have been influenced by hormones, or emotions, or those hidden inhibitions that were trying to break free, but no matter what excuse I try and come up with, the fact of the matter is it was a conscious DECISION, period. A bad one, but a decision none-the-less. I wasn't being controlled by zombies; I wasn't under the influence of space aliens. So slice it up however you want to, it was a choice that I made.
I feel exactly the same about my wife. Sure, she might be influenced by hormones, you can blame it on the MLC, the menopause that is right around the corner, but no matter what...it was a concious decision of hers to leave me for OM. No amount of "it wasn't my fault, I wasn't myself" will convince me otherwise.
-T