Thank you so much for all your answers!
@FloraBreenRobison & @Lucky Cats: Unfortunately, I can't afford to get him a companion, =( and I'm living with my mother right now, so her rules! We have a Cocker Spaniel that seems to be oblivious to all of Prince Fredward's affections, but they will lie down next to each other (of course while pretending the other isn't even there!).
@davenmidtown: He's an avid licker. He will just sit and lick my hand and arm for half an hour if I let him, so it's never worried me that he'll lick dust off of a chair until now because he's now doing it so often.
That's an awesome tip about the petting and the clapping/spritzer bottle. Thanks so much!
I've never considered a vitamin or other deficiency. I will make sure to ask my vet about it, thanks again!
@NMLady: Prince Fredward already gets so bored with the entire house to roam about, so I'd be hesitant to confine him in one room (Also, I wouldn't want to hear his incessant meowing at being locked up!.)
@ttagpine: Thanks for the suggestion, but I don't feel comfortable drugging my cat just to get him to behave!
@sayrahdee: We have gradually been letting him outside, but because he's so inept at climbing and fighting, I've never actually just let him do whatever he wanted. When we're outside, we let him out WITH us, and we don't let him leave the backyard. =3 I'm too worried about him getting chased, in a fight, and/or wandering off so far away that he's lost. I'm overprotective, I know! >.