Ran into an ex of mine a few months ago on a night out. We were together for nearly six years, but it had been a decade since I last saw him.
We’ve keep in touch via Facebook messenger and had arranged to meet this weekend for drinks. A few nights ago we were messaging each other. All very lighthearted, talking about people from the past etc. and I was enjoying the conversation. Then a notification came up on my Facebook and I saw that he’d posted an article about a mutual interest of ours on my timeline. He then messaged me apologising and saying he’d meant to send it to me in messenger. I was a bit 
about how you could mix up sending a message with posting on someone’s timeline, but just said no bother, I’ll delete it (which I did)
He then messaged me asking why I never like anything he posts on Facebook and is it because I don’t want my DH to see it? (DH and I have recently separated) Again I was a bit taken aback and said that I do sometimes like his posts (which I do) and I wasn’t really sure what he was getting at. He then messaged again saying I never like any of the photos he posts of himself and he was wondering why? I was getting a bit pissed off by now but jokingly responded that I wasn’t aware I had a Facebook like quota to fulfil and that I did actually like a photo he posted on NYE. He read the message but didn’t respond.
Now he’s just messaged me asking if I’m still on for drinks at the weekend because he can see my Facebook events page says I’m going somewhere else that night. Surely going through other people facebook like that is something you don’t actually mention to them? Like the dark secret we all keep to ourselves
WIBU to cancel? This is a man in his forties by the way, not the 16 year old his behaviour might imply he is! How do I let him down gently if so? His behaviour is making me uneasy but I’m not sure if I’m overreacting or not?