It's the opposite.
He brings out the worst in her. She brings out the best in him.
Not talking musically, but physically.
He looked much better with her than with Kae, but she looked better with Matt Kemp and Drake or solo.
Plus I always got the feeling that she was insecure with Chris and kinda thirsty. The back and forth with Karrueche and her instagram during Chrianna part 2 was a mess. Chrianna part 1 was nice.