I know its so hard to have those things looming in front of us.
Take a deep breath and take the weekend to sort through your feelings. You of course need to do you. But, maybe you should take the approach of taking the pressure off of him?
I think its fine to say something such as - I don't think this is the solution to our problems but if this is what you feel you need to do I won't stop you.
Sometimes that gets their attention WAY more than what you plan to say. I think he expects you to baulk but he will be thrown off by your acceptance.
