I agree with Paul, in that homosexuality was different than being "gay". Although there were many long term same sex relationships, they were never as open as now. My partner & I are now getting legally married, after 38+ years together [write me to find out where we are registered!].
To us, it is more of a political statement, as all the legal aspects have been taken care of long ago. But, in the past, especially when marriage was the province of a state church and morals religiously mandated, it would have remained impossible.
Whatever Gibbes was, he seems to have remained celebate. May have, or not, had his fantasies but there is no evidence he ever acted upon them.