HC if PC was deaf, it would be hard to tell bc PC is very reactive (you gotta be in that shitty ahh town 🥀) so Whitney wouldn't know till either PC lets him know OR when he takes PC to get a haircut and they see the super old barely working ONE pair hearing aid and he gets the hint although now he says the most disgusting things to PC just to see some reaction and he slows down so PC can read lips 😭✌🏽
Meanwhile with Kylar, he would know already due to following you but in the rare situation he didn't know and dated you, he would find out when he kidnapped PC and upset when she didn't obey him till he was about to hit her than saw the shitty ahh pair of hearing aids 😭 and he apologized and quickly learns sign language to chat with PC as he signs he wants kids bla bla bla but he would take them away from PC when he's hysterical