AITA for serving my cheating husband food he’s allergic to after he called me a bad cook?

I (33F) found out my husband (36M) was cheating on me two months ago. He had an affair with one of our neighbours and tried to lie about it until I showed him screenshots of their messages.

We’re still living together because of our lease, but I despise him. He’s been trying to act like everything is normal, but I refuse to play along.

The other night, he made a comment that sent me over the edge. I made dinner, and he scoffed and said, “No wonder I cheated. You can’t even cook properly.”

Oh. Okay.

So the next night, I made him his “favourite meal”—except I used one of his mild food allergies against him.

He’s slightly allergic to bell peppers. It won’t kill him, but it makes his mouth burn and gives him an upset stomach. I made a delicious pasta dish and finely diced bell peppers into the sauce. He ate every bite.

Half an hour later, he started complaining that his mouth felt weird. I just smiled and said, “Maybe your body is rejecting your own bulls**t.”

He figured it out pretty quickly and lost his mind. He called me insane, said I could’ve poisoned him, and packed a bag to stay at a friend’s house. Our lease ends in three months. I don’t care if he never comes back.

But now his family is furious, saying I “took it too far.” They’re calling me vengeful and unhinged.

AITA?