I am curious,

Would you go on that family vacation if she was still dating OM?

I hate to take the wind out of your sails, and I am glad you are seeing positives, but.....

Why would she push for divorce? She has your companionship, you doing stuff around the house, she can play family with you, you pick her flowers...

All while she is openly dating some other guy.

Why would she push for a divorce? She has it made!