Question regarding facebook picture (see details)

So my boyfriends ex is mad (and mostly jealous, probably because I’m nearly half her age) and told him that if I didn’t take down my Facebook pictures of THEIR children in 24 hours, she would contact FB and have them removed.

Can she do this? The children are not tagged or named, their father is though, which is why she can view the albums. They (both parents) have pictures of the boys on FB but since I’m the girlfriend and she’s just a bitch she doesn’t want me to post any.

What are her rights? Are there any? I have permission from the father – who has shared custody – to post these pictures.