Not so dumb, given this is probably a screengrab from "you", and this character would definitely have murdered his friend

This would also be a funny interpretation.

I thought this was some boomer shit about spouses not listening to each other?

So many different interpretations in the comments.

Truth is the three of them bought a farm with six pigs and then ate the friend.

I just had no idea what the joke was until I saw the trans comments. I was busy thinking, like, "That's really hard."

I thought she married a murderer.

She kinda looks like someone who accidentally shot her husband in the head while joking around about shooting him in the head with a real gun.