WoW, sorry to hear that. Most of the gay FAs I have met were very professional. They have never crossed the line in any way. With my attitude, they wouldn't dare to anyway.
Usually a FA would never approach me with a personal conversation unless I started it first. I think it is very unprofessional for him to ask you many personal questions.
Congrats on that 16 years. I always look up to gay people like you as good example of long lasting relationship.