Buying your own house?

Would love to hear from anyone who has separated and bought a second home to facilitate that separation.

Married 33 years in the USA, marriage is pretty much intolerable but I feel obligated to stay, for some reason. First house is crappy but paid off, NOT conducive to easy living for older people. So I'm thinking about buying somewhere I can live alone and be happy, that would also be more "accessible" in case either one of us needed that.

I realize that this leads to complications if we did move forward with divorce, and am interested in hearing the pros/cons of this scenario, financially and legally.