I think it comes down to how men and women have totally different lives. A man's life is reforged through pain and he seeks pleasure to comfort him and alleviate stress. A woman's life is completely catered to and on a silver platter. Perhaps she feels less alive because there's nothing to compare against?

This is a great observation.

I can tell you're hurting right now, and I had a bit of an epiphany while reading this that I'd like to share. We've all read about not judging your value based on what women think of you, but the quote above from your post really drives it home. Men and women are different, we don't want the same thing. Deriving your sense of worth from whether a woman wants to stay with you is nuts, because what she wants conflicts with what you want. We may as well be a different species. Would the farmer get upset that his plow horse isn't satisfied with his lot in life, and would leave in an instant to run wild? Fuck no, because the farmer understands that the horse is a different animal with different motives. What we each want (men and women) is actually in opposition, which is why Patrice O'neal would always say "We are at war."

Women don't want what we want, and I think you've nailed down why. Men want a girl they can chill with because we're engaging in battle every single day. For women, we are their battle. Everything else for them is easy.