['When I was in middle school, some mean girls played a really nasty trick on me.', "Oh no! I hope it wasn't something that caused you real distress.", 'It actually was.  They pretended that I had a secret admirer, sending me notes and putting stuff in my locker.  I was mortified when they admitted it was them in front of the whole class.']
OMG! Bless your heart. I hope they feel guilty now knowing what they did to you.
When I was in middle school, some mean girls played a bad trick on me.  They sent me notes and pretended I had a secret admirer.