Name changed as outing but regular poster. Really hope friend isn't a MNer.
Years ago, my friend had one date with a guy she met online. She didn't want to take it further and things fizzled out. Now it turns out I'm chatting to the same guy (small world huh?) and we've arranged to meet. My friend was initially supportive and we found it funny, but now he's added me on fb she's convinced herself that he's stalking her 
Because he came up on her recommended friends she's convinced he's been checking out her profile. She even got me to hide some of my own statuses that reference a personal life event she went through recently. Not a problem, it's her life and she doesn't want him knowing her business, but AIBU to think she's being a bit over the top? The atmosphere has changed from it being a funny coincidence to her pretty much calling him a stalker
and implying I shouldn't meet him/it will go badly.