The French lyrics in Lady Gaga’s “Bad Romance” are in the bridge of the song. Here is the part you’re referring to:
“Je veux ton amour et je veux ta revanche
Je veux ton amour, I don’t wanna be friends.”
Translated to English, it means:
“I want your love, and I want your revenge
I want your love, I don’t wanna be friends.”
This line fits with the song’s theme of desiring a passionate and intense relationship, even if it’s complicated or tumultuous.