As far as anybody knows, he was a virgin until his death. He would never have considered himself to be "homosexual" or "bisexual" or anything of the sort. He was very much a Christian in faith and morals, and even moreso, in his conception of the human condition..
Not everything that is emotional, even passionately emotional, is sexual. Deep attachments between men --- heterosexual men --- used to be the stuff of war stories and explorer/adventurer stories. It's the stuff of the epics and of the classics.
Let's not demean and kill profound male friendship under the suffocation assumption that it's all about sex.
Ever notice that in our homo fascinated MSM that all men in the past who did not get married are suddenly classed as homos, even if they are not gay.
I’ve noticed how it seems that all relationships have been reduced to something sexual. It’s not true. Humans are social beings.