Remy is almost 6 months old(yay)! He has been socialized very well I believe. He gets along great with my schnauzer and my moms two small dogs. He also gets along with my brothers lab/golden mix. My husband has a boxer that stays In our yard. Remy hates her! She loves remy and wants to play but Remy growls, shows his teeth, and will try to attack her. Which is funny because he is about the size of her head. She wouldn't harm a fly. What can I do?? This is the only dog he has problems with