Stuck on Gum

We have tried to limit her gum chewing to one piece (sugarless) per day. At that rate, she will need 5 months to chew all the gum she received for her birthday (thanks, Michelle, for the ENTIRE SACK OF GUM). But she still hung her head in the trash can and cried on Sunday when I made her spit her gum out so she could eat dinner. I'm like, "DUDE, you have 350 other pieces of gum."