I have 2 female Boxers and a male French Bulldog currently. I've had Boxers for 20 years and have never had a problem like this. Our family is just distraught over it! Mya is 5 years old and Chloe will be 2 years old in Feb. They have always been great together...playing, sleeping, eating, etc. Until last week. They have suddenly started full-on fighting. We can not have them in the same space together now. Individually, they are the same happy, goofy girl. And they are each fine with Goliath, our Frenchie. It didn't start over food or a toy, either. We are puzzled and devastated! Does anyone have any knowledge or suggestions for us?