I'm wondering how that's going, because honestly, the independent life was a pile of shit when I was young and single, and lonely, and miserable. 😆
I think maybe she just felt overshadowed by your position, and maybe felt pigeon-holed as a vicar's wife (when she wanted to be a saucy rebel?).
She's probably now out partying, but finding it's not as much fun as she'd imagined.