Teacup is just a runt chi bred to make money. Its a designer "breed" usually from a mill and often sold at a young age by somebody claiming the 5 week old tiny dog is really 12 weeks old so it looks like it will be smaller. She's a cutie though. Sounds like she needs some socilization and less babying. I hope you can find a good home fo her, asuming you don't decide to keep her.