I was happy when I heard my brother was in a relationship, he is late 50s now and has been single for 20 odd years. He doesn't go out much or do anything so I was shocked. His partner is someone he was friends with in school who got back in touch with him. Will call her N.
I have never actually met N, I will add. Though our sister has when the 3 of them went for a drink together and she said N was quiet the whole time and looking down, and whenever DB went off to the toilet N wouldn't say a word and just nodded at my sister's attempts to try and make conversation. Soon after this meetup N adds me on Facebook, neither my brother nor my sister are on there. I didn't think much of it and added her back.
Then the weirdness started, she attempted to add my DD19, and my 23 year old son's girlfriend (will call her DIL as easier). Both rejected her request, neither of them knew her from adam and they both live away from home so don't keep up with DB's love life. After they both rejected her request she sent me a message saying
"Would you mind telling (DD) and (DIL) that I'm (DB's) partner as I would like to add you all x".
Thought it was odd but didn't want to be rude so asked them both to add her which they did. Then the bombardment started, every time me DD, or DIL posted something she was ready to respond. It is very strange, all 3 of us say that whenever we post something, within one minute she has replied every time without fail. Keep in mind she has never met any of us. DD tends to post lots of inside jokes on Facebook which are obviously aimed at her friends, and N always comments asking her to explain. DD updated her profile pic and N shared it onto her page and captioned it "Beautiful step-niece!". DD was very uncomfortable.
She comments on everything I post, asks me to elaborate on throwaway comments constantly. If I tag my friend to an event that I think we'd both be interested in, N hijacks the post and says "This looks very good!". She has started adding all of my friends every time I post on their wall. One day she sent me a message along the lines of "How did your grandma pass away as (DB) says he doesnt know and there's a lot of secrecy there xx". I thought it was hugely fucking cheeky. None of us know what happened to our grandma anyway as she died before we came along and our mum never liked to talk about it. I didn't reply and she kept sending me other little messages.
DIL and DS recently found out that DIL is expecting, they are keeping it low-key and quiet until she is in the 2nd trimester as she had a miscarriage last year. The only people in our family who were told were me, DD, Dsis and DB. They expected N to be told by DB, wasn't a problem originally. Anyway, DIL and DS told everyone not to talk about it or mention it online etc, and I know for a fact DB told N not to talk about it either.
Today DIL posted something completely unrelated on Facebook and N of course comments underneath "You must be excited about baby, when are you due xx". Cue all of DIL's friends and work colleuges etc bombarding her with "OMG are you pregnant?" posts. DIL specifically only wanted close family knowing at this stage and then suddenly everybody knew. DIL then promplty blocked N as did DD out of anger.
Now N has sent me a message asking what she has done to upset DD and DIL. WIBU to tell her to get lost for doing that to DIL? Except I don't want to upset DB and I don't even think she's doing it maliciously, she's just a bit odd and doesn't understand boundaries.