The only way to stop all of this is to stop it.
You’re engaging way too much.
The house needs to be sold, it’s as simple as that.
Tell him you’re contacting an estate agent today.
Can you move in with your mum until it’s sold?
Honestly, the drama is partially your fault. If you engage every single time then why would he stop? You’re wasting police time.
If he’s only threatening for attention then he’ll stop when he doesn’t get it.
IF he really needs help then you can’t give it to him anyway. If he kills himself it will be very sad but nothing to do with you.
I mean, who gives a shit about a mulberry bag?? How is that something you’re even posting about??? “I’ve always wanted one.” Really???
Ignore him. Sell the house. Buy the bag.