Dear Bubba A.
Frankly, I would like to be easy on you but anyone can do that. I empathize with you and your current situation.
There are two sides to this as in any coin. Your side of course, and your father's side. We will not include anyone else for now.
If your father is of the type that does not flex well over issues, that “this is my house and you do what you are told,” then frankly, you should have thought about this before you indulged yourself in your fem personality.
Hold on now! Relax!

You mention that you are “Gay.” Does your father know this? You need to sort out the issues. CD is one thing. Gay is a second issue separate from the CD issue. Today’s society knows pretty much that people are “Gay” not by choice but rather, by design. If you father is against any combination, depending on your mother’s position in the ruling class of the family, there may be an end run that you can do with her to keep things on track.
The question really is simple. Is dear old Dad flexible or not? Does he come from a previous family that was very rigid? My spouse is a “Mountain” gal so I have some serious experience with this type of thinking.
Before I say anything else, with 36 years of marriage experience, I need to know a bit more on the family’s makeup and your ability to support yourself in the near future if need be.
Hugs
Danielle Marie