Well, this is a cover of lady gaga's song (in case someone didn't know). I read somewhere before that lady gaga stated in a radio interview that her song is about falling in love with a very close friend. Another quote from gaga: "i was actually listing hitchock movies. What i'm really trying to say is: i want the deepest, darkest, sickest parts of you that you're afraid to share with anybody, because i love you that much. "
And, in case anyone's wondering, the french part simply translates to "i want your love/ and i want your revenge/ i want your love/ i don't wanna be friends. "