If it affects you directly financially, then okay. But I'm trying to get you to drop the rope for now as far as "it's not right" positions toward your husband. HE DOESN'T FACTOR INTO YOUR THINKING AT THE MOMENT, except as it PERTAINS TO YOUR DIRECT WELL-BEING/logistics, etc. Emotionally, he's gone.
Isn't there some way you can firewall your own finances and the store's funding from him, and take away his ability to withdraw funds to spend directly on his affair?