I've known a couple men who ran groups for adults/children and they're inundated with women who have crushes on them and women who feel a special connection with them.
Men who run things that other people attend appear warm, approachable, dynamic, charismatic, interesting and interested, self motivated, confident, friendly, intellectually and emotionally intelligent... because the success of their business/activity depends on it.
That not to run you down, its just experience. They were also single and made crap selfish partners because their priority was the groups they ran.
In your shoes, I wouldn't.
You're "not long out of a 17 year relationship" and, whilst it won't feel like it, you will be vulnerable at the moment.
I'd let the dust settle and find someone it wouldnt be 'super awkward' with.
I've been in your shoes. I just told myself it was my brain's way of safely exploring that side of myself/my life again and it wasn't real. A bit like having a crush on a teacher. And I was right. 12 months later, well, let's just say I was glad I hadn't sent that message 😉