Torak was very blunt with his confession. He didn't want to scare Raine, but with their current situation, regarding the prophecy along with the Sloth and the succubus's recent appearance issues at the moment, he was almost certain that their future ahead would be bloodier than this.
This was something that she needed to overcome.
He didn't want to sugarcoat her with pretty words when danger was lurking in the dark. The incident with the drunk werewolf at the mansion was still shrouded with mystery, it wasn't a normal occurrence for their kind to get drunk easily and how the werewolf's mate got killed was still investigated.
Torak knew it would be very hard for Raine, knowing her initial mental state, but he wanted her to be strong for her own sake and he didn't want to lie to her.
