He's only trying to teach her the ropes and what is ok and what isn't. They will eventually grow to be close but let them work it out themselves as long as it is safe to do so. Our boy was not happy about us bringing our puppy home after he lost his older sister but he soon got used to her. At first he wouldn't play with her but would allow her to snuggle and sleep with him. Then he eventually broke down and played with her about two weeks to a month in. They are now inseperable. They love each other dearly. They are about 3 years apart in age. She is now 4 and he is 7.