I had a similar experience but I didn't delete mine.
When my cousin was still in school, she would post the most retarded "Teen swag" quotes. Almost every time she did, I would tease her with a minor comment.
"Almost every time" being whenever it showed on my feed.
She has hundreds of selfies and statuses, she would only post the stupid shit every now and then. Naturally I wouldn't go out of my way just to browse her posts for that one silly post.
One day, I'm at my Aunty's for dinner and they suddenly bring it up with a heavy and serious tone that made me feel like I was being interrogated.
The table literally went quiet and everyone was looking at me (nearly ten people).
Turns out my cousin told them I was commenting on everything she posted (utter bullshit). I tried to explain the retarded shit she posted but my Aunt was just looking at me in disgust without listening to what I was saying.
So I had to sit at the dinner table in silence, being suspected of perving on my own cousin who is six years younger than me.
She was around 13-14 at the time, which made it a lot worse.
Even now, years later, I feel fucking furious to how I was treated.

The only reason I stay on FB is for the gaming groups and memes. I don't give a shit about anything else.