I have a 5 month old Male Basset. We got him when he was 10 weeks old and has been the only dog in the house. Until last week. We got a 2 year old spayed/nurtured Female YorkiPoo and we cant tell if hes being a bully to her or just being a dominant male. Just to give you a little context on the issue. He has his own area, a good size area for any dog, in our apartment. Big enough that its actually 2 areas in 1. One side has his bed, another foam mat for him and toys to keep him entertained, while the other half has pee pads. I know its the lazy way to potty train, but he also goes on the grass outside when we take him out. Anyways, My wife and I work all day, and we made the effort to go home at lunch to walk him a bit, but it just wasn't possible all the time. So we decided to look for a "companion" for him. We finally got lucky and my wife's coworker has a cousin that had Molly and she was looking to get rid of her because she just couldn't take care of her. She too worked all day and SHE was in her crate all day. We took her in. We know HE is a handful when it comes to playing with other dogs, so we introduced them slowly. Wanted them to start getting used to each other. At first we would leave her in her crate next to his area and we could see in our camera that HE felt comfort with her there, which was the main reason to get Molly. He didn't whine one bit with her there and we saw that she was getting used to his as well. We finally had a breakthrough and they seem to be getting along. So today, we put them both together in his area, which is still plenty roomy for 2 dogs. We got her a bed of her own and a couple of toys. Well we saw on the camera that he flipped her bed over, put her toys next to his and when she tries to lay on his foam mat, he pretty much pushes her off of it. She barks and nips at him, but he doesn't care. He lays on his small bed and his pad is free, but once she steps on it, he will launch at her and kick her off. Any idea on how to "teach" him to share his area a bit more?