Why is the girl allowed to call guys names?

Relationships are tricky and girls are even trickier. We like to tease and make a fool out of guys and call them names, Cos ur guys and it's what ur used to. Ur supposed to be able to handle this sort of thing. But when it's done back to us we hate it cos we are "weak" and it's not so funny. Maybe if it's a real thing between you and a girl, You should explain all of this to her! :)