First time poster, came seeking help since I have little experience. I'm probably going to be very descriptive, I want anyone answering to know the full story.
So I do not own a dog. My roommate owns a dog.
Chloe. Great Pyrenees. Female. 1 1/2 years old. "Fixed". Around 70-80 pounds if I had to give a rough guess.
From what I've been told this dog has been crate trained, not sure on the exact history, but he got her from a rescue of some sort.
We've had her about a week.
He is a police officer, he works nights. I rent a room at his place, I work often and half my time off I spend at my girlfriend's place.
I have no background raising/training/owning dogs. However my g/f's family has always owned German Shepherds. I've known her dog, Kane, also about a year and a half, since they got him. They (her parents) have a ton of experience raising dogs, have always had a shepherd. Very good dog owners. I play with Kane alot, I have a great relationship with him, he listens to me better than anyone except for my girlfriends dad. Great dog. First dog I could ever consider to be my best friend. I didn't have alot to do with his training directly but I've been around since the beginning. I love this dog. He's awesome. I know how good a dog can be with a family.
Anyway, back to Chloe. My roommate just got her, his family has had many of this breed. She is very needy, a lot of energy etc...she is still in the process of becoming acclimated to the house, understanding where to go to the bathroom, etc...
She has been kept in his room, he bought a crate recently but basically she's locked in his room while no one is home. I am very good about letting her out to pee, letting her roam while I'm around, I don't mind and feel bad about keeping her cooped up. (but understand he doesn't quite trust her in the house just yet)
My problem is, and I realize it has only been a week, I know it takes time, dogs learn, but she displayed some very problematic behavior tonight. I came home and my roommate has been sick so he's bedridden. She of course was in the room with him, and when I came in she was at the top of the stairs barking before I even opened the door, and wagging her tail very purposefully (I know not all tail wagging means happy) and snarling, baring teeth. Territorial. I get it. You don't even need to know dogs to get it.
So, I hesitate, it's late, 11+hour shift just over and I really don't feel like getting bit. I have no idea what this dog is capable of, so I wait. Roommate gets up, escorts her down and out the back into the fenced in backyard. I come in, inform him let me drop my stuff and I'll go out so she can smell me, check me, whatever they do to recognize people. I open the door, she's sniffing me and calms down. Suddenly I'm her best friend.
(side note: I had been home one night while he was working, since I was around and letting her out and correcting some things she was doing, she seems to listen to me better than the roommate. She understands "sit", and I can get her to respond to it better than he can. So she understands to some degree that I am in charge of her.)
Anyway, the rest of the night basically proceeds with him leaving his door open, her inside with him, and every time I leave my room she's doing the same behavior while on the bed with him asleep (sick). She acts as if I just entered the house again. I could be going to the bathroom, walking downstairs to get a drink, no matter what it is I pass his room or at least am visible from it to do anything outside my room, and the dog just goes territorial again.
What gives? I need help with this, I am not timid around this dog but unless someone thinks it's a good idea I'm not heading up to this dog while it's doing this. Let me know if you have any advice please. Seems like she's being overly territorial, but I don't really know what to expect as far as how long a dog of this age should take becoming acclimated to a new home.