She does say that she has an avoidant attachment style. When someone gets close they pull away. I did notice they didn't really follow up on that thread, working to become a more secure person. Maybe one day.
I mean, it could also be that she is just fantastically bad at prescreening. It's easy to find a hundred garbage single people - that's why they're single, remember?
Her case is really clear cut, dry and simple. Aging single mother of 3, yet with very high expectations that don't match her fading looks, nor personality.
The vast amount of choices and nearly unlimited supply that hookup apps have on offer messes with her head
This is a common recurring theme with single aging middle aged woman with kids types.