FRENCH SINGER/VIDEO SEARCH! CAN YOU HELP?

she has dark short hair, and shes french...her music video im looking for starts off with her being in a police interrogation room, the story is about her talking about her boyfriend whom she loved, and she found out that he had a family and children and a house she broke in the house and ended up seeing his wife and him, and she taken to jail, but she was pregnant!! its all in french, i love the song, can you help me find it? who is she? and whats the name of the video?