Yup, some interesting stuff there. More honest than I expected.
My mum didn't have the "Mum gene" either. She says I was great between toddler and teen years, but outside of those times, I was a nightmare, she often felt trapped and alone (after she split with my dad, who had done the care when I was small while she went back to work). She was a PNB, mostly, and she owned her choice to have a child, but she didn't want any more, and she's honest about how hard work and thankless parenting can be.
And she's now surprised I don't want any kids
eyes2