Why would he tell me he's gay (I know he can't be)?

honestly, you met him in a chatroom and he lives in Israel..I doubt you live anywhere close to that. You have not been in this so called "relationship" with him for very long at all and you are already deciding that you love him unconditionally?! when all you guys have done is chat on webcam, while he repeatedly asks for sexual favors? how can you even consider this a relationship? my advice to you, is that you NEED to meet somebody in real life, or at least meet somebody online who lives closer to you...not this joke of a relationship.