I am so sorry to hear about your dad being sick. Please know I will be praying for him.Take the time to visit him as much as you can even if he says he wants to be left alone.It is time you will never regret spending with him.I know because my mom was only 55 when she passed 18 years ago. He really doesn't want to be alone he is most likely just huet for some reason. I will be praying for you and your family.
Gail