Oh, Matt. As if being gay is something to be turned on and off, something you can "get over" somehow, just to please people. Families, the ones we're supposed to be able to count on, can hurt us like no one else. My mother's done a real number on me. So much for unconditional love.
I have gay friends with two children (the family name will not die, therefore -heaven forbid). They're the least dysfunctional family I know, a joy to have in my life.
Your parents shouldn't be surprised at the drunken cell phone message. They pushed you to that point. Maybe this incident will actually help - after the smoke clears that is.