I don't like my girlfriend's dog but I really see a future with her?

first of all, ladies, don't give me the "get over and don't give her an ultimatum" thing "because you'll lose every time" please. I know that and I'm not looking to rob her of her relationship with her dog. The thing is I really like this girl but when it comes to the dog, in any sense really, I'm not in love with the situation. She coddles him too much like a baby so he gets away with murder. When we kiss, he literally snaps at my face and she strokes his heads and tells him to calm down. When we're lying down in the bedroom, he comes in and scratches the side of the bed and cries cries cries and she says "we just have to ignore it". I understand what's going on - I'm stealing her attention from him. He resents me and is trying anything to win her affection back when I'm around. He sleeps in bed with her and the last time they were in my car, there was dog hair everywhere and the little guy dug his nails in my leather seats (a bit inconsiderate). Now I know I'm going to have this conversation soon but, as I've stated, I really like this girl a ton and want to do it in a respectful way but to be as clear as I can be: the dog needs to be put in his place. Too much dog hair really bothers me - I'm tired of rolling the sticker rollers over my clothes after every visit. I don't want to sleep in a bad with a dog and, frankly in my family, if a dog nips at your face, he's hit on the nose hard because he's a dog and dog's understand conditioning (not "calm down" while stroking his fur). Any and every suggestion is much appreciated. Thanks!