LMAO bro wth why
I guess being marked means you're like bound together forever or something so Chase thought he had no chance lmao (Chase did not yet know that he was the alpha who marked Josh)
Only a marked alpha, omegas can be marked by more than one alpha. So Josh's mark isn't really a problem, but he overheared the conversation between Josh and Isaac. And Chase being Chase...^^
The "Spoiler", it was in an extreme situation. It had to do with an unwanted fan who appeared before.
Someone said that when Chase finds out Josh is a marked omega he tries to kill himself in front of Josh