This is a bad movie with lots of glitters in it!
It appears to me that the writer and director has not a deep understanding of basic psychology, interpersonal dynamics and psychiatric disorders except what you find at yellow pages or common online platforms, specially about anti social personality disorder.
Eating disorders, substance use disorders, personality disorders, phobias, depression, suicide, anxiety and lots of other psychiatric problems can be found in the movie, but their depiction are very shallow and raw. It's like you are making a casserole but the ingredients are chewed up, swallowed and then regurgitated back to the movie, because they are raw and tasteless.
Too sad that I'm not getting my 2 hours back.