New York -- Actress Sienna Miller was so hurt by her ex-fiancé Jude Law cheating on her that she had to consult a therapist.

Miller called off her engagement when she found out that Law was having an affair with their children's nanny. They tried to reconcile but split up for good last month.

She confesses that she was forced to undergo therapy due to the pressures of the relationship. "There were times when I felt it was all just too much," contactmusic.com quoted her as saying.

The therapy lasted just one session when the doctor asked her just one difficult question and Miller realised that she was not ready for treatment because she was still traumatised.