Its hard to know what to believe when there are so many lies, half truths and disinformation about, and it certainly involves having to choose what to believe and what not to believe, but taking out all the plots and plans and misc people, I feel like what happened is this:
Kelly found out about Barb and Chris, she started recording it and pushing for pics and details etc because Kelly is an incest loving freak(as seen on twitter) and proceeds to sit on all the info and wait, Kelly says that Fiona leaked the audio without permission, and why is this? Because Fiona freaked out at the incest and panicked. Then Kelly and misc troll partner starts damage control(and fails)