I agree with MLT. Call it Karma or what have you, but the chickens always come home to roost (so you'd best duck when you hear the flapping of wings). That having been said, the process often takes years...so don't expect to "see it now". While you may not care if she learns her lesson in 5 years, a lesson learned is just that, no matter when it happens.
Well, I suppose we're all partly to blame for the circumstances we're in. While there are some exceptions, it is generally true that "it takes two to tango" and in most cases all parties are contributory to one degree or another. However, to say you alone are the cause is probably an overstatement (and perhaps a gross one at that).
The problem with going back and trying to figure out who's responsible (you, her, the OP) is that you don't have enough information and, even if you did, in many cases the whole thing is relative. Sure, some cases are obvious, but most aren't. For example, if your spouse complains s/he had to leave because you weren't meeting his/her emotional needs, does that mean you're too cold or does that mean s/he's too needy?
What if you're not capable of delivering what's demanded? If you have a plumber and demand s/he fix your computer, when s/he can't is it the fault of the plumber for not knowing about computers or is it your fault for expecting a plumber to be able to fix one. Very tough, indeed.
My life is OK. I've grown accustomed to my changed circumstances and, being a creature of habit, have formed new ones that offer some comfort in their consistency. I have no plans for anyone else. I was essentially a confirmed bachelor before my M and have effectively returned to that.
That's not to say I didn't snoop around for a bit. However, in my age range, women are either still single (for a reason!), want someone to fund the lifestyle to which they would like to become accustomed, want a step-dad for their children, desperately want children, or are bitter and angry and lash out at the nearest male upon the slightest provocation.
None of these are appealing for a number of obvious reasons so I have little interest in dating and little use for women.