I would like to see more about Boba and Sintas myself. I'm sure Karen might give more details at some point in the future.
Yes, I would agree that he really wasn't brought up to be a family man as he was a clone raised by a single father with no marriage relationship to observe while growing up. NOT saying anything against a single parent family--I'm an only child from a single parent household myself. And I can totally agree to that thinking--I'm married with kids and it is not easy for one who was not brought up in that environment to adjust to.
For all Fett fans, I would strongly suggest reading Bloodlines. I read the book and listened to the audiobook--truthfully, it's one the best EU books I've read.
Bottom line--he is human. Emotions are a part of being human, no matter how deep they are buried or how much they are avoided. I too at first didn't like the idea of him at one time being married and having a family, but I'm starting to see just how that could have attributed to make him into the character we like so much.
"Train your sons to be strong, but your daughters to be stronger."--Karen Traviss, Bloodlines