Bieber was spotted with Sofia Richie (Nicole's younger sister) and Selena Gomez's fans went BERZERK that he had moved on from Gomez with this chic...
They REALLY wanted him to know it wasn't OKAY...
Bieber got pissed and threatened to make his account private, so Gomez stepped in and fueled the fire more...
But Biebs wasn't gonna let someone else have the last word on HIS account...
...But isn't this kinda more important than that other thing?
MENtorship?