Isaac Hale is the son of a farming family in Feyre’s village. While he is working class, he and his family are financially stable, and far better off than Feyre’s. The two share a secret romantic relationship, the parameters of which are somewhat unclear. Their time together is mainly sexual in nature, but there’s also clearly an emotional connection. Feyre explains that she was drawn to Isaac because he shares the same ingrained sadness as her, and that the two find comfort in each other’s company. However, while Feyre’s relationship with Isaac isn’t merely sexual, she never claims to have strong romantic feelings or love for him. He also doesn’t appear to have these feelings for Feyre either. Rather, their relationship is one of necessity – in difficult times, they both needed the physical and emotional release of partnership. Their stolen moments together helped make the strain of their difficult lives more bearable. Feyre is grateful for being able to share these moments of happiness and relief with Isaac, but it’s clear that their personal connection isn’t passionate enough to result in a long-lasting relationship.

When Feyre returns from Prythian to find Isaac newly married, and flourishing in that marriage, she feels no jealousy and is happy for his good fortune. Although they don’t speak to each other, she and Isaac share a meaningful glance that expresses their appreciation for one another but also that they have moved on from their past. Isaac’s character exhibits that romantic relationships do not have to be eternal to be meaningful and positive. Although Feyre and Isaac were not in love, he was an important person in her life, and there’s no reason for her to hide or deny that he was a significant presence in her past. Rather, she can look back fondly on their former connection while assuredly moving forward into a deeper, more serious romance with another partner.