New Delhi, Feb 11 (ANI): Kristen Stewart has confessed that she is incapable of controlling her heart. The 23-year-old actress told Marie Claire magazine that some people have a certain thing that they go for in their partner and she has a subjective version of that. The 'Twilight' star split from Robert Pattinson recently after they struggled to move past her momentary indiscretion with director Rupert Sanders.