Title say's it all really, on her way to pick me up from work a woman decided to open her car door with out bothering to check and was hit by my other half as she was passing. 
This daft bat launched into a rant about how her door was ripped off (it wasn't but it will need replacing) and is now claiming my other half is at fault. I don't see how this can be the case as all the damage to my partners car starts from the wheel arch, thus suggesting the car door was opened as she was passing the drivers door.
So obviously we're fuming, but what I was hoping you lot could help me with is who is at fault here?
No word from the insurance company as it only happened couple of hours ago.
Opinions would be helpful.

This daft bat launched into a rant about how her door was ripped off (it wasn't but it will need replacing) and is now claiming my other half is at fault. I don't see how this can be the case as all the damage to my partners car starts from the wheel arch, thus suggesting the car door was opened as she was passing the drivers door.
So obviously we're fuming, but what I was hoping you lot could help me with is who is at fault here?
No word from the insurance company as it only happened couple of hours ago.
Opinions would be helpful.