I have a boxer who is a yr and a half old. And a few months ago I got an American Bulldog who is now 7 months and around 80 lbs already. It seems like they are not getting along though. The boxer is small and the bulldog is a lot bigger and tends to bite her legs and other areas and shakes his head and she yelps. I constantly have to find myself separating them and it seems like I don't have control. I dont know if they'll ever be normal b calm. Any comments, questions or suggestions? Please help. Thank you!