See, these are things I am asking you to think about to possibly understand the root of your fear.
If you and your W were married why was only HER name on the lease of a house you shared? It doesn't matter if her parents own the house or not... or it shouldn't. Even if she lived there alone prior to marrying you why didn't you ask for a new lease when you moved in that had BOTH of your names on it?
Why couldn't you afford the house on your own? Because you passed on a job and your W took it.
Both things happened while you were married. Your W has been running the show and you let her. You let her be the sole person on the lease in a house you both live, pay and maintain. You let her take the better paying job. She sounds like the man in the R and you the W. That is why she is just fine on her own. Even when she was married to you she was still the leader and not much has changed. IMO that is why she is just fine on her own and you are not.