You're still the kid who won't stick up for himself:
1, The minute you realized that the JW was meddling you should have told the JW exactly where to get off...and then refused to continue the conversation (in other words, silence).
2. You're looking for someone to do your fighting for you. Forget what Facebook's rules are in the UK, either own up to what you said in the PM and/or learn to keep your thoughts to yourself. Don't expect anyone else (i.e., FB) to straighten out your messes.
That's the reality of life today. Adapt.