I have just started taking over the walking, training with our German Shepherd Ruger because my husband is no longer able to do it. (Health Issue) Belle is just beside herself when she sees me interact with Ruger. Barking and carrying on like a crazy, demon possessed dog. I make sure that I take Belle on her walk first. I also do her workout on obedience with her first. Is this something she will get used to after a period of time. They get along great together (we are always right there with leashes on both because we know what can happen if we are not right there every second watching like hawks). My concern is that if Belle is now jealous will she start out biting at Ruger and showing her jealousy with Ruger and how much will he take. I'm thinking that maybe they can no longer be out together even with us leashing and watching. I don't want to learn by hindsight that I should have expected trouble.I would appreciate your input.