Where do I begin....?

Let's talk about the LUNACY of (some) men, shall we? This is one of my favorite topics because it never ceases to amaze me as to what some men, or people in general, really think they can get away with. And let me stress, THIS IS NOT A MALE BASHING RANT. Notice I did say SOME men, not ALL men or even MOST men.

This is the scenario: Girl meets boy. Girl and boy begin chatting it up and hanging out. Girl starts to like boy, but boy just wants to be friends. Ok, cool. Girl gets text from Boy's cell phone at 2 in the morning from his GIRLFRIEND asking Girl to not call back. Girl tells Boy hanging out is no longer option. Boy still calls Girl daily wanting to hang out. Girl wants to have fun so she still hangs out with Boy. Girl goes away for weekend and Boy tries to pull some "don't cheat on me" craziness, "who are you going to see?", "If it's a guy, you lost a friend...." BLAH BLAH CRAZY BLAH.

Let's recap: Boy has girlfriend that Girl never knew about. Girl is unattached and has been labeled "FRIEND" by Boy. So why is it that Boy thinks he can dictate what Girl does, thinks that he is entitled to ask questions about who Girl is seeing or what she is doing?