So I have three son 22,18, and 16 years old. My 16 year old seems to be going through something, so at a family diner my 22 year old son pulled me to the side and told me that his brother my 16 year old is gay and is afraid of what I might do if I find out. He made me promise not to tell him that he told me. So do I just tell my son that I know? Do I give him hints? If I do tell him what do I say if he ask how I know?