In city of Glass who does Simon choose Maia or Isabelle?

In City of Glass by Cassandra Clare, Simon Lewls chose Isabelle Lightwood over Maia Roberts. Throughout the novel, Simon, being a werewolf and a Shadowhunter ally, is shown to have romantic interests in both Isabelle, a Shadowhunter, and Maia, a werewolf. Initially, his feelings are more clearly stated towards Isabelle, leading to some tension and complications in his relationship with Maia. As the story unfolds, Simon, despite his feelings for Isabelle, recognizes that his connection with Maia is stronger, and he eventually makes the decision to choose Maia.