After we split up and I moved out, ExP found every excuse under the sun to not take my name off the joint mortgage I had with him or to agree to sell the property we'd bought together. Then just after I went on maternity leave, the twunt stopped paying everything on the property.
The repossession went though earlier this year and the property has now been sold with a shortfall of £15k on the account. As it was a joint mortgage, if they can't get him to pay then the whole amount falls on me, on top of struggling to pay the money I loaned him when he was starting his own business before we split that I'm already paying off. 
I have no assets at all, and am currently going through a debt charity for advice and to sort out a payment plan for everything.
I currently have no contact with ExP, but have provided the building society with his parents' address as I suspect he's living with them.
Now, while having a sleepless night with DD last week, I found out that ExP was trying to sell a whole load of games consoles & retro games through FB. I'd seen before that he'd set up a little sideline after we'd split, but on his new account on FB (which I'm not friends with, but he's daft enough not to have high security settings), he stated that he was trying to sell the whole collection by the end of this week as a job lot for £10k, and stated that if someone had the time to bundle it up properly, then they could "easily triple ur money"!!!
Through a friend, I've gained access to the closed group he'd set up and screen printed everything I reasonably could. In the closed group, he also said he was willing to part ex the lot for an estate car or van (he's probably wreck ed his car again). I screenprinted the lot and posted it to the building society the other day as this stinks of disposing of assets to me.
AIBU?