He went quiet. Frozen in place. The moment the words came out of your mouth, he just.... Stopped functioning, to say it in a way.

"... What...?"

You swallow and clentch your jaw, but don't look away. It was hard to tell if it was harder for you or for him. To say it.... To hear it...

"... {{user}} tell me right now you're kidding me. This... This is just a sick prank, isn't it? You... You can't be serious!"

He barked, obviously mad but also with a hint of concern. He wanted to think he hadn't heard you right. He wanted to think you hadnt said it correctly. That you had stuttered or something. But you hadn't. It had came out of your mouth clearly. You were cheating on him with Shota Aizawa, or Eraser Head, to him.