Just for argument’s sake, the fact that he is so cold does not rule out anything. He could be gay or straight or bisexual still!

but to the ”gayness” he isnt tht….no can he be
u see he mostly prefers to be alone
even the male death eaters are not so close to him

all in all only Snape and Bellatrix are the close ones
as far as gayness goes………Voldemort cudnt be tht cos he is devoid of tht emotion
and a gay person has more complicated love emotions than a straight guy

voldemort isnt capable to express and understand normal love………how the hell can he go tht extra mile and venture into gayness ????????

disputable to the very core……but interesting