That sucks.
In grad school I lived next door in an apartment to a friend's girlfriend. A week after they broke up I saw her in the hallway crying, so I stopped to talk. She had found out that the reason he had broke up with her was that he had cheated on her with her best friend. In the conversation she said that he also left all of his vinyl at her place, and asked he to look after them till he could find a new place to live with her former best friend. It was a solid wall of vinyl in plastic milk crates.
Offhandedly, I mentioned that she was being way nicer than I would have been. I would have probably been so angry that i would have smashed them all. I ha ha'd and went into my own apartment.
After just a few, I started hearing hammer sounds, so I checked the breezeway, and saw her smashing the albums one by one with a hammer. I was like, "Oh crap!" "Hey, a few of those are really rare, can I have those?" She agreed.
So, like a week or so later, I run into my buddy, and he was livid. He said that she had told him that I had told her to smash his albums. I tried to explain, but he was finger in my chest, angry. I was tempted to give him back the rare ones that I had saved. That was really why I had saved them. But, he decided to shove me instead. Long story short, I waited 20 years before giving him back his Rolling Stone picture disk, Hendrix live albums, and a few other impossible to find rarities.
I know, I know... I should have kept them. He did turn out to be a piece of shit human anyways.