I'm going to cut off an acquaintance for what I consider dishonering his deceased wife
Why does that make you want to cut him off?
I don't want to have an acquaintance who disrespects the deceased
He should be more respectful. I'm sure she was a great person and didn't deserve that. Have you tried talking to him about it he might be going through a rough time and trying to joke about his pain.
It's going to happen.
I think you should still talk to him first for what he did. You never know what he reason behind it was unless you ask about it.