Help

[Matt]

As some of you know, I split with the misses.
But now she's found out what I've been up to recently she's not happy.
She saying if I stay round our mates she will smash up my car (there's a story to what happened there but not enough time)
But annoying thing is that she isn't giving me my money back.
Wouldn't mind a couple hundred.
But it's 1.5k :/ I got a loan out as her credit score is shit, bought her a nice car.

Loans in my name, log book is in hers. I need this money otherwise I'm going to be homeless. I'm already sleeping on sofas.
I don't know what to do, legally shes not tied to the loan atall