After the recent incidences, I have written to both PGB and TMOI. I've put what I sent below, and I'll update you on any responses.
I understand I'm probably the last person you want contacting you, but just hear me out. If you read this, and still want to leave and never hear from me again, reply saying that and you'll never hear a word from me ever again.
This situation is a terrible one, and I deeply regret your choice to leave. I realise I handled the situation badly, and I apologise. You will be a huge loss to the wiki and the community, and you will definitely be missed. I wanted to take this opportunity to ask, what would it take for you to return?