I guess what I'm trying to figure out is why a woman would not want to be "married" with children as opposed living the single life.
(ok, I'm coming in on the end of this, so please forgive me if I'm repeating what someone else has alreadt stated, but.....)
Not everyone dreams of finding prince charming, having a big fluffy white wedding, and being June & Ward Cleaver. Marriage is not for everyone... sometimes people learn the hard way after a failed one, and some people just know from the start it's not for them. Others might be in a perfectly secure and stable relationship, but have the (as you said) "if it ain't broke, don't fix it" mentality... they know they're happy, they know they're committed, so the 'piece of paper' is merely a trivial detail.
I don't see what's so hard to understand about that.....?
If it were a MAN who was content with the way things were, and he wasn't chomping at the bit to walk down the aisle, you wouldn't think twice about it, but because it's a woman
there's the expectation that she should want marraige?