You message / phone your closest friends in person and tell them that you’ve split up and you’ve moved to X .
Then you message everyone else on whatever platform you use and say something like
“ Just to let you know that Dave and I have separated and we will be getting divorced. I have moved back to Manchester to stay with my parents and we will probably be selling our flat in Bristol. I’ll be transferring my job to the Chorlton branch of X company.
“ It’s not a decision that’s been taken lightly after 13 years together and we ve tried to make it work but sadly that’s not been possible.
“ I look forward to catching up with everyone over the next few months as I settle back into life here in Manchester.”
DONT put any details on social media apart from that you are single. that includes posting memes about “ escaping abuse “.
DONT put any of the nasty details out there in writing in public, as you can’t take it back.
Tell your friends and family ( that you trust) as much as you like in person or on the phone.
Give ZERO info to his family and friends , however much you like them or think that they are “ mutual “. They are not , it will get back to him and cause trouble . Just rinse and repeat some version of the above.
yes it’s a shame but that’s where we are.
no we won’t be getting back together, it’s final
If any of his friends / family contact you and hassle / threaten you to get you to back to him , block them.
if they tell you he’s suicidal / whatever , tell them that it’s good he has friends / family who can arrange mental health support for him, then block them .