Well I hope you get a decent amount of alimony once the divorce is finalized

I like this idea, then it will dock her credit score and she'll be more likely to pay

But would there be any interest on the rent if OP leaves it unpaid? Like snowballing debt?

How much would it cost to break the lease and move somewhere cheaper?

Also correct me if I'm wrong but aren't you entitled to some of that money in savings and also alimony (since she was primary breadwinner)? I feel like you should get out of your current situation and then sue