With all the ancestry DNA available now, would be interesting if there was a soulmate gene. These are a couple of examples of matches. I think I would want to know. Probably a very bad idea though. It‘s a slippery slope fate vs choice. (-♾ for using the word Frisson)
I can see why this is popular, like shades of gray for sex. The Middle Aged woman is bored with her middle classed life. This is a self help guide disguised as a novel. The techniques are real cognitive therapy ones. I thought the husband was having an affair, not afraid of not being good enough for his improved wife.