YOU SAID:
bro what are you up to talking to my girl like that
INTO JAPANESE
俺の彼女とそんな風に話してどうしたの?
BACK INTO ENGLISH
What happened to talking to my girlfriend like that?
INTO JAPANESE
女友達にそんな話をしてどうしたの?
BACK INTO ENGLISH
Why did you say that to your girlfriend?
INTO JAPANESE
なんでそんなことを恋人に言ったの?
BACK INTO ENGLISH
Why did you say that to your girlfriend?
That didn't even make that much sense in English.