Guilty or mutually

Is anyone knows about: I driven through after the cross section, the car on the right was parked on red curb and driver opened the door, she broke my passenger mirror. My husband is saying it is a mutual situation, but I dont understand is he is right or no. She stand on the tight street and opened the door on the red curb. I have a pictures like other cars drive through this car partially in the oncoming lane. Husband told me I had to do that same, but it is braking rules… so could anyone told is he really right and her insurance is not going to pay for a mirror?