People in glass houses shouldn't throw stones. Aren't we all on here because we do not thrive in "traditional" relationships? Maybe she's looking for something that's not traditional, but with the benefits of legal marriage?
As far as having another child, that is a personal choice that should not be made or condemned by others. I myself have 6 children, and if I wanted to have another it would be of no one's concern but my own. Yes, it is chalenging, but it's a blessing as well.
My one piece of advise for the origional woman posting...just keep looking girl, you will someday find that piece to complete your puzzle.