Niall seemed to be in an awe that how his master fell into Renna's trap and how the heck did 'it' happen? Well of course, according to him they both had already shared intimacy since he caught them in a specific position.
Although there were many things disturbing him, chief among them was that Renna Amaryllis proved to be domineering over his master.
And the other thing was quite worth pondering which made Niall to disappoint in his master, though Ronan Ross claims that he had kept his promise but do not you think that he had already exposed himself in front of Renna, the other day?
The right hand man had already acknowledged that fact his master was undergoing a change due to Renna's presence, but according to Niall his master had placed his personal life open like a book in the very first meeting.