Why can't I delete a shared album from OneDrive.com?

[M3RRI77]

I recently broke up with my ex-girlfriend because she is a cheater and a liar. Back in February 2017 I created a shared OneDrive album for us to share pictures of our life together. That way we could access photos more easily instead of texting or emailing them. Now that we have broken up, I want to delete the album. However, she already removed her access to the album, but didn't remove her photos. The issue is, I cannot delete the shared album. I can delete the photos I uploaded to the album, but hers still remain with no previews. I cannot remove her photos either. Microsoft has been no help. Can anyone here help me? I want this album gone for good.