Hi, I (45M) recently met a girl on a group Meetup walk, first time meeting we had a deep/intimate conversation about marriage, relationships, dating etc. Then met her on another Meetup walk, and had a more general chat about work/holidays/life etc. Sometime after the second walk I realised I fancied her.
I've now been added to the walking group Whatsapp chat with her included, so now know her phone number. Question, is it OK to send her a "hey, I had a really nice chat, fancy a walk/drink message" using the number from a group? Normally, I would prefer to ask the question IRL and get the number that way – but not when we'll next be on the same walk.