At this time, there have been no credible or confirmed reports of Justin Bieber publicly commenting on or addressing any arrest or allegations concerning Diddy (Sean Combs).

Claims suggesting that Bieber has “broken his silence” or “exposed” Diddy’s behavior appear to be unsubstantiated. No reliable media outlets have reported such an event, and there is no official statement from Bieber that supports these rumors.
The spread of speculative or false stories, especially regarding high-profile celebrities, is not uncommon. However, it’s essential to rely on trustworthy sources when it comes to sensitive or serious topics like legal issues or accusations. As of now, any claims about Justin Bieber’s involvement in exposing or commenting on Diddy’s actions remain unverified.
If there were any developments concerning Diddy, it’s likely that reputable news organizations and official channels would provide thorough coverage, including statements from both parties. Until such reliable reports emerge, it’s important to approach these rumors with caution and wait for factual information.