Thanks, those were very kind and thoughtful comments, and @ReneBumsWombats, the ‘romantic furlongs’ made me giggle inwardly on a spectacularly wet school/work run.
Honestly, I do know my own worth, and I value myself. My self-esteem is reasonably healthy (after a lot of therapy).
But I also recognise that I am an undeniably plain middle-aged woman who has fallen for a good-looking man who, yes, is only marginally younger, but who, because of patriarchal norms yadda yadda (and the fact that’s he’s also well off), could easily be dating pretty women a generation younger.
Plus he’s still very bound up psychologically with his ex, who was/is the kind of cool, aloof woman whose emotional unavailability attracted him. I think that if I did as @PollyAmour suggests, he wouldn’t know how to deal with someone putting their cards on the table, and wouldn’t find that straightforwardness attractive, even if I looked like Juliette Binoche.
And I do hear you, @PollyAmour on incredulous laughter being a good cure for infatuation, but the risk feels too high. It’s not just children’s activities. And , @emptythelitterbox, I’d probably die of fright if he reciprocated. .