Why do SOME guys try to act tough?
Some guys just have the need to protect their ego's. Girls are the same way.
For the same reason some girls do: to cover up their insecurities, or to protect themselves from looking like an easy target to mess with/pick on.
They over analyze themselves and lack self respect.
They try and keep up with the real deal
Some people like to put on a front. Some have issues within themselves, so they bully and act tough.
I don't know, but unless that's his real personality, it's really unattractive. :-/