www.bbc.co.uk/news/uk-38978661
Currently a case going through court. The wife has spent years being distrusted and treated like a child and now wants to end the marriage. Her husband thinks they have a few more years to enjoy. The judge agrees with him - apparently being married to a disagreeable, controlling man is par for the course and needs to be sucked up.
This seems to highlight a massive loophole in the law. You can't get a divorce just because you are unhappy - unless your spouse agrees.