My girlfriend and I adopted a shelter dog recently (about 15 days ago). We are not sure of the breed but the common consensus is he's a mix of a Golden Retriever and German Shepherd (some say there's a bit of Chow in him as well). He's about 4-5 years old. He's a pretty submissive dog. He seems like he's adjusted well to the house (no accidents, no tantrums) and it seems like he's found his comfortable spots and sleeps well. He follows us around in the house all day long when we are at home and is really happy to see us when we get back home in the evening. But apart from that he doesn't seem to show affection at all. He seems to enjoy getting belly rubs but he doesn't sit next to us for too long. Maintains distance. Doesn't stay longer than 5 mins on the couch / bed, when invited. My girlfriend likes to cuddle with him but he just waits for you to finish and the minute you finish, he walks away. We realize its a new environment for him and we have to be patient with him but we were wondering if this sort of behaviour is pretty common in dogs or if there is anything we could do to make him feel more comfortable.