Divorce was Priceless...
My husband was a late 50's widower & recently retired professor when we met and shortly afterward married. I was still working, but he spent his days at home. He kept contact with many of his old associates (men & women alike).
His 'gig' as I would eventually learn was assisting them in their adulterous relationships. He would babysit, petsit, provide alibis, pay for salon services, hotel rooms, lend a car, our guestroom or even my clothes, whatever was needed. What he got out of this I can only imagine, voyeurism is the nicest thing that comes to mind.
It took me awhile to figure out what was happening, then $1000's of counseling and his false promises to stop, and after two years I left. He still doesn't understand why I was so upset.
I will have a few more years to work to recover from the financial loss, but for my sanity, divorce was priceless.