Actually thats very much how genetics have programmed women: look for the stud alpha to pass on his genes to the children, then the safe nester to help to raise the babies.
I’ve been observing this phenomena for years. I have also seen in recent years the rejection of those women happening more and more. As one of my former co-workers told me. I’m good enough to provide a good safe home to her, (Ex-GF), and her three kids by a bunch of well-hung losers who are nowhere to be found now that the kids and she needs them. But I’m not good enough to have any kids of my own with her.
In his case he eventually did find a very nice woman but it took him years and the internet to do so.
Here’s an article on it:
Might as well go with the flow and find a nice young single mom with kids to be the hero for.