You agree with her. This marriage isn't working for you either.

Remember the question - What do you want? Answer - You want her to be happy. If she would be happier without you then so be it. If it means you work on things great. Either way here is the plan.

Get a plan together for both instances and serve the option without revealing the plans. Wait for the answer and then execute the corresponding plan.

You respect her wishes and you will be fine regardless of the outcome. Then you let her go and let her be the next one to speak.