Having singlehandedly organised a street party last year for the jubilee - inc risk assessment, paying for insurance, street notices, spending £500 by the end - that was a great success I stupidly did it all again this year for the coronation. I bought most of the bunting, put it up, arranged tables/chairs/canopy, decorated the canopy, went round the whole street 4x to get everyone involved, blew up an awesome balloon display, licked paper chains to decorate, contacted neighbours to remove cars, organised music, plates etc. Same as last year only a handful of lovely neighbours helped; it was pretty much all me.
But it was 'gatecrashed' by a neighbour I didn't invite who's just moved in to my building and has caused me incredible stress and anxiety - I've recently recorded high BP for the first time in my life. He's a leaseholder, I'm a freeholder and he does whatever he wants without permission. I stopped him undertaking work in a communal area about which I knew nothing. He called the police. I asked him to remove a Ring doorbell at the communal front door he was using to spy on me (not paranoid; another neighbour confirms) and when he missed two deadlines I removed it myself, told him I had no intention of keeping it but needed written assurance he wouldn't re-install it before returning it. He called the police claiming theft. Both times the police told him I was right and he needed to apologise. But the time wasted sorting all that out and writing to him to list his many misdemeanours meant I missed the deadline for official street closure which almost scuppered the whole event.
He bangs on my door, he turns up at my back door, he calls me and harangues me on the phone to the point I've had to tell him I want no direct contact with him as I consider his activity to be harassment (there's tons of other incidents). So when he walked into the party I asked him to leave. He refused and said it was his street and he therefore had every right to be there. I pointed out I'd organised the whole thing. But he was supported by two sets of neighbours who literally did nothing to help or contribute yet argued with me and then went down the pub with him when it came to clearing up (they're not friends yet; he only moved in two months ago and one of them knew of the problems).
I'm so upset that it's ruined what should have been a great day and was an even better success than last year's only because of huge cost to my time and purse. The guy's an entitled bully and I recognise him striding in to the party was part of that behaviour but it still made me cry out of anger and frustration that he was benefitting from my hard work and these two couples who just turned up and had a great time felt they could tell me what to do. AIBU?