I'm scared that my dad might be secretly gay. Am I right?

weather your dad is gay or not is a question only he can answer. If he loves your mom and still is affectionate with her than I doubt he is. You two obviously have a good relationship and whether or not hes gay he is your dad and he will love you regardless of his sexual preference. Time is short, soon you will have to go to collage and perhaps even have a family of your own. Enjoy the time you spend with your dad. Don't worry about weather or not hes gay, if he is he will deal with it in his own way. everything you mentioned isn't a sure sign that someones gay. Lots of men enjoy gardening, dressing nice, chick flicks or MADONNA music. don't worry about it so much.