what a drama queen.
i am not an actor, but i wonder if actors have a hard time with emotions in general. when your job is about re-creating emotion, i would think it would be hard, after a while, to know what genuine emotion is.
so for instance, in mel's case, when he told this chick he "loved her" (early on in their relationship), it would be really easy for him to "sell" it, but down inside not even know if he meant it or not. when he says "i love you" on screen we have to be able to believe him (and he is a pretty good actor) so his emotions have to come from some place of authenticity. then when he tells someone in real life he loves them, it must come from the same place...and therein lies the confusion.
add to that confusion, alcohol and an overly inflated opinion of yourself, and you have a guy who doesn't know shit from apple sauce.
i don't mean to defend these stupid rants, but they do seem common in hollywood where authenticity is sold like a commodity.