My Yogi wasn't affectionate as a puppy AT ALL. In fact, he was mean!! He would attack your shoes - you could hardly walk, because the foot that was on the ground, he'd be biting, then when you'd put the other foot down, he'd go for the other foot. We were starting to wonder if getting him was a mistake... No wonder why the guy who sold him to us let us have him a week early, even though it's illegal to sell them before they're 8 weeks old! He had others that were reserved, he wouldn't let those dogs be sold before 8 weeks, but as soon as my parents showed an interest in Yogi...the guy practically threw him into my mom's arms!
The first maybe 6 months were rough. He would even challenge my stepfather - he hated men. I thought my mom was going to go crazy!
After a while, though, and tons of love, he became the most wonderful dog ever. He's affectionate (unless he wants to play ball) and SO incredibly smart, it's scary!! And goofy...I've never laughed so much since we got him!! He follows me a lot, sometimes to the point of being annoying. He HATES strangers, though, and he's very intimidating...thank God, because we don't live in the best neighborhood!
There's a female pit bull in the neighborhood who apparently has a crush on him and has come to see him a few times when in heat, but he doesn't want to have anything to do with her. Doesn't like people, dogs, any animals, bees, anything. Well, he can tolerate birds to a certain extent, but that's it...
I'm so glad we were patient with him. I'm sure anyone else would have given him away, or he'd have been neglected or something, because he was a little stinker as a puppy. (Don't let my innocent-looking avatar fool you!)
Good luck!! With lots of love, he'll probably come around!! :)