i am curious why the OP didn't include her married status in her OP, because whether she is currently in a marriage or partnership, or on her own does vary one's attitude to this 'friendship'.
Molly I think most of us assumed you were married because. otherwise why would you post about a friendship like this?
Did you think you were poor growing up?
Why on earth would anyone plant.....
Only 50% of middle age adult manage more than 1 brisk 10 min walk a month.
You say you just drifted apart so there’s no troubling back history.