OP it sounds like you’d like him not to be married because you’re remembering things & emotions are being unlocked & you also want to assuage your guilt. You are also single & maybe a little vulnerable? I don’t mean that in a bad way it’s just that you describe the situation as him having all the power - when you say you’re worried you’ll end up feeling hurt /looking stupid / if he says he is married.
Has the contact to date been in any way flirtatious? Have you been feeling excited or giddy or a bit scared/anticipation?
I do think as adults meeting is not going to mean some awful thing. Unless of course you’ve seen photos of him now & you still find him attractive & would be open to something if he was single too?
Just emotionally protect yourself & you can be in control. If you do feel attracted again & if there are flirtatious undercurrents you really need to know if he’s married still - more to protect you emotionally so that you won’t be in a position of feeling let down or hurt in any way by someone who may not be available but prepared to go down memory lane for their own interests & not be so considerate of yours.
Asking if someone’s still married is perfectly normal adult conversation surely?? As is enquiring about kids, where you live now etc etc. Are you just scared of asking because it means you’ll know the answer & then will find ot harder to meet up when really, you actually really want to?
Does he know you’re single? Did he not ask these questions either? I think neither of you saying something pretty factual gives you your answer OP.
I think have another chat before meeting up & plan your emotional responses around that information. I would as a woman ask if his wife is aware you’re meeting & that you hope she knows as you know you wouldn’t like your husband to be meeting up with an old flame behind your back. I agree with a PP saying you’d love to meet her too if you decide to remain in contact.
Unless of course you really don’t because you’d really like him to be single.
Obviously this is all just what vibes your posts are giving (to me) forgive me if I’m wrong!