Some staff have the temperament of fast food workers and will allow almost any behavior as long as you aren't actively trying to die on their watch. It looked like she somehow swiped her phone from the staff and hid it in her room. If you are someone close to her, then you should be able to tell her brother about it.
From the recordings and Tumblr posts, she is having both psychosis and a BPD episode. They don't switch on and off. You can hear her trying to wretch back control, namely in the tape where she eats food, and then desperately claw back for love and attention. Some cases of BPD are intense enough to be the cause of psychosis (I can not speak for Summer, I am not her healthcare provider). That is where the "Borderline" part of the name comes from. Borderline psychotic. She is likely not trying to be manipulative, but naturally is due to her thrashing between emotions. Which brings me to this:
No one should ever reach out to Summer unless a family member or personal real life friend who intends to continue her mental healthcare. Any attempts to talk to her online will likely make her worse. She is unstable, so any information you glean isn't reliable.
And Jet, learn from your predecessor. Avoid the temptation to stick your dick in an unstable woman.