I've just seen someone in a shop you've not seen for months. Don't know them really really well but they did quite a bit of work on our house over the past couple of years. We got on very well etc. They didn't see me and we're in a rush. Would you send them a WhatsApp to say "hi, happy Christmas, just missed you in shop name hope you're well.
DH says it's weird, I think it's ok? Options please