This is very telling, @PithyBeaker - you realise that he isn't the man you wanted him to be, and probably he won't ever be.
You are giving up your last hope of a relationship with the man he COULD be.
But isn't.
He has not taken moving out/splitting up as an opportunity for self reflection and working on himself.
He is not comfortable doing that.
He IS comfortable rewriting your relationship history so that its failure is all your fault.
That way he doesn't have to recognise any difficult truths about his poor behaviour and treatment of you, and of your son.
Or do the hard work on himself to grow as a person.
He says you have thrown out a "loving respectful boyfriend who worshipped you".
🤔
The man who loved you so much he couldn't be bothered to bring you a cup of coffee.
Who respected you so much he couldn't be bothered to clean up after his children when they trashed your house.
And called you a c**t. Several times.
Who worshipped you so much he wouldn't stop gaming long enough to go for a walk with you.
As MN loves to say, he's shown you who he is. Believe him.
Time to organise removing the rest of his stuff.
Then block him.
Sending support as ever, Pithy, stay strong. 💐