Ha ha OP I've just cottoned on to your username 😈
@Moomeh makes a great point, above.
However - I'm a bit concerned about how you are selling yourself the upsetting notion of needing years of therapy. Therapy - with a decent practitioner - is a wonderful thing! Just ... please don't set yourself up by convincing yourself, in these early days after The Incident while your emotions are still reeling, that this man & his actions have that much power over you.
I absolutely do not want that to have come across as glib btw.
Yes, access some therapy, talk it out with pals, but also make conscious efforts to find 1) anger (I can see this is simmering, more on that later) but just as importantly - 2) humour.
There is nothing like humour for diminishing fear & disgust. You have it within you to find, perhaps not The Incident itself, but its perpetrator utterly ridiculous. What a foul little man! Thank goodness you saw his true colours before giving any more of your valuable time.
So I am suggesting a halfway house that keeps you safe, but helps you balance your own need to express your validating rage & humour:
A few weeks later with no contact at all and I’m back on my feet and moving forward, and he’s just emailed me and asked me for half the money for something he paid on behalf of both of us.
I never thought he’d have the audacity to ask for it after the way he behaved. I assumed he’d consider it his arsehole tax. He can easily afford to swallow the cost
See? Here is anger - & here is your excellent sense of humour 😂😂😂- hats off to arsehole tax!
He is a CF, but you know that.
For pretending to be a decent bloke & wasting your time.
For blocking you as if YOU were the miscreant.
For then unblocking, & cheerily asking for £££ as if nowt had happened ...
As your update says you have now repaid him for the physical item you kept, I reckon that's enough "going high" to demonstrate your dignity in doing the right thing. Him chasing you up for the rest of it will just look shabby to anyone else, especially if he makes A Thing out of it. Because your response to that would surely be - "what? He committed The Incident, & now wants his ex-girlfriend to pay him for a few drinks & meals? What is he now - a gigolo?"
I've read all your posts, but not PP's yet so not sure what's been suggested - I would go with something like:
"Huh? I've paid you back for (the physical item) already as you well know.
So the great news is - neither of us owe each other any money, because I have generously written off your outstanding Arsehole Tax.
Do not contact me again. I will consider any further contact from you as harrassment - particularly in light of (The Incident)."
And ... BLOCK.