Wife tells me she finds another man very sexy and helpful..What to do?

I am working overseas with the wife back in the states. I am doing this so that our financial situation will benefit. While talking with the wife 5 days ago,I pointed out a $2000 mistake she made in her judgment. She then stated that she finds the new car salesman who sold us a new toyota to be very helpful and very sexy! Since hearing that, I have been going through almost severe depression. I have been listening to sad songs on u tube and just lying in bed unable to sleep at night.I am age 61 and she will be turning 69 in 17 days. Our net worth is over $600k and I would hate for the salesman to get his hands on any of the fruits of my labor, but I fear the hands are already on more than the joystick of the new rav4. Should I end this mess of a situation, end up with $300k and move on with my life or just suffer mentally? How long should this emotional 'funk' ast for me? What would you do?