I had a very close friend - I'll call her Lucy. Lucy and I were very close to the extent we'd talk on the phone every day, message constantly and get together regularly. We'd celebrate birthdays, look after each other's children (and were fond of them) and send gifts at Christmas to the whole family. We told each other everything, including private things and laughed together so much.
Lucy went off me a few years ago. It coincided with her getting a new partner. I gently asked her about it a few times as at first I was really confused about not hearing from her for extended periods of time. She always said sorry sorry, it's me, life is just so hectic, I feel so bad etc. I tried not to be too clingy but my feelings were hurt. I could see from social media that she was making time for other friends. The space between us just continued to grow and eventually I withdrew a little to protect myself as I'd text her and get no reply for weeks, call and get no answer and she kept cancelling plans, often at the last minute.
So the long and the short of it is that we're not really friends anymore, which is sad but ok, life goes that way. I haven't seen her for 3 years now and although we were down to birthday cards, we've had two family birthdays this year and no cards from her. So I still don't know what happened, but it's done.
But - we're still connected on all social media and I find it really weird and awkward! She's also connected to my partner and my eldest child. She never, ever comments on what we post but I find it weird that she can see and that I can see what she posts. I could block her from seeing my updates on Facebook and ask my DP as well but don't want to involve my child, who still thinks of Lucy fondly and looks up to her. I use social media extensively for my work and she can see everything I post on other channels as there's no way of hiding her. So - should I block her? I feel like I'm about 12 doing that! And it also feels sort of spiteful - and maybe a bit final? But equally I hate that she can just snoop on my life without ever bothering to contact me.
YABU: Don't block her just crack on with your life.
YANBU: Cut those ties! Just block her and crack on with your life.