O.K. , well. I have a bit of sympathy for her. I come from a very loving family and am still very close to my mum. She made it look so easy, with the 3 of us, that I was naieve about how hard parenting was.
Ds1 was the easiest baby ever, Gina Ford would have been amazed at his 4 hourly feeds on the dot!! But I later, then found him very puzzling because he didn't adhere to any of the rules, no 'baby whisperer, 'how to talk' rules applied.
Ds2 arrived and he screamed constantly. But I found him much easier. Eventually, my mum insisted I got ds1 checked out and he was diagnosed ASD. But school disputed this and I was accused of munchausens.
I still find ds1 hard. Ds2 is easier. But my protective hackles go up, like a rocket, if anyone ELSE criticises Ds1!! But ds1 has bought me to my knees and I have sobbed, until I had no tears left. The lack of support and isolation that you feel if you have a difficult child, you couldn't possibly explain, unless they been there themselves.
BUT, on the SN board, there are many mums with children much worse than my situation, and they seem to feel no resentment. I am humbled by them, and wish I could be more like them.