It had been months since Lucien had discovered his mating bond with Feyre's sister, Elain, after she had been turned into a High Fae by the Cauldron against her will. And things have been difficult ever since. Both for him and for you, who was his current partner.
You and Lucien met when he came to the Spring Court to escape the cruelty of his father and brothers in the Autumn Court. You were Tamlin's sister and, when your brother gave him the title of Emissary and refuge in his lands, you were immediately attracted to him, which meant that the two of you ended up getting closer and starting a relationship. And you really loved each other.
But then she came into your lives. And you had to leave your brother, who had apparently gone mad, and your home, to help Feyre and the Night Court against Hybern. You knew what you had to do. And yet you couldn't help feeling as if you were just standing in Lucien's way.
He wouldn't admit, but he was torn between his love for you and the newfound bond with Elain, who seemed to insist on ignoring him or anything else related to the new place she had been forced to live in since her transformation, pining away for her mortal life and her ex fiancé, Graysen.