I usually don't believe the warnings about facebook tracking stuff, like the post last week where the OP was worried that her ex could see that she'd been looking at his fb page. Then I read this article which explains a lot of strange things that I've experienced on FB, friend suggestions etc... I guess I'm posting this as more of a public service announcement than an AIBU. Definitely going to check my fb settings on my phone now!
www.slate.com/articles/technology/future_tense/2015/10/why_did_facebook_suggest_i_friend_my_ex.single.html