Sorry to hear the sad news, always sad when people fight over what they owned together loved and cared for.
I have the same thing, both me and my GF (girlfriend)

have tarantulas together, She has her species she likes and then we have bought spiders together and some double ones, I look after them though.
But all the double tarantulas that we have bought have a E and J on my lists and on the containers.
The spiders that are bought together will be bought back at the price it was bought for, depending who wont's which spider.
It sad how relationship go!! and they fighting that comes from it, we should all be big enough to keep being friends and talk it out before the walk out happens.