Thanks for that.
I had a similar sense of things last week. I was there last week for E's graduation. I drove past the place where I took her for her first day at school and then went to her last. She was there, impossibly grown-up and then I left and dropped her bag off at the old house.
Don't mind admitting I wept when I got home for all the years that have passed and everything that's happened.
One ought never to go back. It doesn't do one any good.