You state that you suspect that some of your family members are aware of your sexual orientation. You have the right to invite anyone you wish to your social gatherings, but having done so, you shouldn't attempt to censor who they are.
"I was told by a high up in the world's largest Christian organization that if I didn't end my relationship and denounce my homosexual lifestyle, she would call all the event planners I was already booked with and tell them I was gay and get all my gigs cancelled."