looking for a particular Whatley story

I started thinking about this around Easter but can't find it.

I seem to remember a Whatley story about a woman who becomes a devisor and becomes insanely angry at her boyfriend, in her madness creating a raygun that zaps him, turning him into a bunny girl. I believe the bunny then comes into her own mutant powers? I'm not sure if this was a one-off or if there were several stories about the bunny girl.

Any guidance appreciated! Thank you!