This is probably the wrong group but I need some advice. I have to pits. Not full blooded. I’m unsure what they are mixed with because the people told us they were full blooded. I need help with my sweet Bella.

She has suddenly become so mean to my other dog. They came from the same litter and have always been around each other. She growls when layla comes near. They used to play all the time. She was the sweetest dog. She’s not like that towards people. Just my other dog.

Layla does nothing wrong to her. She tries all the time to cuddle with her and play. Bella has recently stopped eating and I took her to the vet And they said she was holding out for human food and once I stopped giving her people food she began to eat again. She’s eating fine and is super sweet just so mean to my other dog and i dont know what to do anymore. Has this ever happen to anyone? Please help.