It’s been speculated in the Valentine Low book that Meghan arrived with the narrative that she would be rejected. The goal was to create an untenable situation. I have maintained and I still do that Harry wanted out while airing his grievances and found the perfect person to do his dirty work for him.
I’ve heard Markle attacked her own family. Can’t remember why or what, but she obviously hates families. Yes, when she divorces Prince Harry, she is dumping their kids.