A little while ago I posted on a work colleague’s timeline ( we started at the same time so although we don’t work together, we do have that in common & are FB “friends”). I said that I thought she looked fed up at work that day & I hoped she was ok. It was only recently that I noticed my post wasn’t there. AIBU to pm her & ask why? Surely there’s nothing wrong with showing concern? I wouldn’t delete that if a colleague posted it on my timeline.