Acrimonious

ac·ri·mo·ni·ous...Mirriam-Webster

  [ak-ruh-moh-nee-uhs]

–adjective

caustic, stinging, or bitter in nature, speech, behavior, etc.: an acrimonious answer; an acrimonious dispute.

After enjoying our lovely meal out, I was tempted to indulge in the chocolate torte. The little devil on my left shoulder said, "go ahead Nancy....you only live once...you know you want it!"  The little angel on my right side said, "do you really think you should?  I mean it's not as if you're still hungry..." 

I flicked that little angel off my shoulder and acrimoniously whispered, "...come back later when you can tell me what I want to hear!"

Then I ordered the torte.