Either the guy has a really unrealistic image of himself or he believes his mommy telling him all those years how special he was.
I think its all part of the entitlement mentality where people really do think they are special without having to do anything to justify it.
I know women get made are me when I tell them they are not a princess and im jot a prince so dont expect to be treated lj me one but if you act like a lady I will treat you like one and with respect as long as its reciprocated.
I like the saying, dont raise your daughter to be a princes, raise her to be a good wife and she will have a better chance of having a good marriage.