It's normal teenage behaviour. Yet they villify you for it. I spent many a time in the back room of the hall for being friends with a worldly boy, and when I say friends I mean completely platonic. But the Elders TM didn't believe that, I was questioned about my periods, if I was on the pill etc. This started at the age of 12. I earned the s**t title through that friendship. All for something that anyone outside of the KH would have seen as perfectly normal.
They keep boys and girls separated under the 'protection of virtues' spin, hoping to alter your behaviour, but teenagers will always act like teenagers. I'm sorry they treated you this way Dinah.