T.,
my husband's father is exactly like your husband and he damaged my husband emotionally a great deal, let me tell you why.
My father in law comes from an old style German family, where "the babies can be kissed only when they are asleep". Growing up he did not receive a lot of demostration of affection and his own father made sure he understood what it meant "to be a man".
When he became a father himself (to my husband), he did not know how to show him affection and whenever the poor boy was crying or showed his tender side (my husband is very sensitive and loving) he would say:"You have a lot of woman in you", meaning "you are a sissy" or "not man enough".
The result of all these things combined, is that my husband grew up not feeling loved, or accepted, by his own father and it still hurts him to this day.
Growing up he did everything he could to show his father that he was, in fact, a tough man (left home at 16 years old, made his own money, martial arts, cars/motorcycles, army etc..) and it was just a desperate attempt to please him and "convince" him that he was worthy of his love.
Luckily his mother is always been very loving to him, she taught him how to love and i have to thank her if I have a wonderful man by side today.
Being a man does not mean necessarily doing "manly things", it means growing up feeling confident in your abilities, being reliable to the people around you, respecting women, taking charge of your life and making something out of it, knowing how to make the people you love feeling loved ans safe. What is more important than this?
So, go ahead and love on him as much as you can: he needs to feel safe, growing up, and hugs/kisses just make him feel strong, because he knows he's loved and does not have anything to fear.
He will become a balanced adult and will know how to make people happy around himself.
Some woman will thank you one day!
Good luck and enjoy that boy,
S.