AITA for telling my boyfriend I won't make him into an army of worms

I asked my boyfriend if he would he still love me if I was a worm. His response was to ask me what I would do. I responded with I would put you in a tank and take care of you. He then follows up with "if I was a worm, I'd want you to cut me in half because when you cut a worm in half, the worm becomes two worms" He then asked me if I could do that until there were an army of worms that all came from my one boyfriend worm.

I am appalled by this response. He knows I'm afraid of worms.

Edit: He says he's proud of his answer.