As I said in my post above, I think the odds are that both he and that Kevin are closet cases. Obviously,however, "sexuality" is a broad and varied topic, and it is never as easy as gay or straight __ full stop. It's played out in myriad ways over a broad spectrum of sexual behaviors.
Pallo strikes me as nothing special, a garden variety denier, a kid brought up in some tangentially "Catholic family," common and lower middle class to be kind, and he's heard of the sin of the 'love that dare not speak its name,' to quote Oscar Wilde, as something shameful and sinful, and he had the big half brother who was bigger and who was a soldier. He heard all the 'F' jokes at school and add that to a church and family milieu that is toxic to the growth of personal freedom and the layers of guilt put on any kid are many and it often warps and breaks them. In that regard Pallo is no different. He was a puny runt and destined either to hide his true self or simply create a facade and live behind it. And we see, he's pretty good at hiding behind and creating whole curtain of lies and fakery.
He also wanted to be one of the 'jocks' at school, but he was a joke, too small and untalented. He grew to see only the surface of things. He's not bright enough to have much self reflection and he hasn't the depth to try to have some deep understanding of himself. Socrates said the all the world's wisdom can be discovered in the two words above the gates to the Delphic Oracle at Delphi: Know Thyself. Pallo is probably deeply ashamed of his true self, whether gay or not, and will never admit the strong attraction he has to other men, and as he ages he may deny it or, as many do, act out on it in secret. Of course, I don't know.
His projections, his homophobia and his overcompensating shallow nature just label him a sleazy white trash con to me. His sexuality, well, one guess is as good as another in general, but his gaybaiting and homophobia are undeniable. It could be just that or a feeble attempt to mask a lot of self hatred.