I was on my front garden weeding a few weeks ago, when an older man who I'm on nodding terms with, stopped to pass the time of day. I seem him dog walking occassionalky so assume he lives on my estate. Fine, I've no problem making chit chat & talking about summer holiday plans for a few mins. My dog recently died, so I asked if his dog was friendly and if I could pat it. Dog was lovely, had a little scritch and off they went. 2-3 min conversation tops and I didn't think anything of it.
Since then I've had a FB friend request from him about 2 weeks ago which I ignored and then another from his business account over the weekend. Started to feel a bit uncomfortable as I've no idea how he's found my name or why he'd do this. Its all locked down though so didn't think anymore. Yesterday though, I started getting lots of random "likes" on my Instagram profile on really old pictures and a couple of messages asking how I am and commenting on my photos. Although this is open, I use a variant of my name on there, so no idea how he's found me.
I was just going ignore, but I live on my own and no longer have the dog to see weirdos off and something feels off to me. Aibu to send him one message telling him not to contact me via social media and its unwelcome? Or ignore completely? I'm normally pretty relaxed but there's something about it thats made me feel really unsettled.