The Plot thickens even more about what Lucian really is. They sense he is a witch but not the Demon. they sense the goodness in him just as Hazel does. I think there are more People that have seen how thinGs will be with Perrie is king. So Many have seen how kind hearted Lucian can be
I think Julian didnt mention Hazel because he knows it was an arranged marriage and a fairly recent one too. Maybe he assumes Lucian doesnt really care about Hazel as much as he would care about the people he grew up with, like Lincoln.
I hope he remembers Hazel soon. Lucians new powers that he is discovering is going to be interesting later To see just how powerful he is and what else he is capable of.