I don't believe it. I've never seen a man in real life act anything near the lead of a Romantic Comedy. And maybe that's why so many men avoid relationships. Many friends' recent relationships ended when the man observed that he just didn't feel the rush anymore...which seems so silly. Unless he's holding himself to the standard of the Romantic Hero who gives up all sorts of things because he's so powerfully compelled to be with the girl-next-door?
I used to think these movies were only damaging to the women who expected the men to behave like that...but maybe it's just as much a relationship killer for the men?