Kidding, Bro Code: "The Golden bro rule that everyone knows, Bros over hoes. This rule may be seasoned to taste by the bros themselves. Example; Bros over hoes except at the close. This rule of the bro code is what sets the male gender apart from the female gender. It is the very essence of the bro code, and embodies the true awesomeness that is bro love."
I wouldn't say it would be any serious at that age. BUT you can ask her out. If your friend is mad that you got the chick, he's an ugly ass mofo who is applying the rule "Chick>friend"
Simply fuck her and kill him.
"Have you ever loved someone so much, you'd give an arm for?
Not the expression, no, literally give an arm for?"