I felt more like the writers knew in the epilogue that they didn't give Tav a choice, and that's why Halsin is so nervous, so insecure, so much so that he was afraid to come to a party where Tav might have doubts about their life in the orphanage. In the end, he himself admits that he took away her life of great adventures. My Tav had no choice so she went to an orphanage, but that's not her calling, she's there because of Halsin and to be honest I feel like a failure. And all it took was one line of dialogue. Hey, we've saved the world, let's pack our bags and go, maybe even with a persuasion test if he had doubts.These are Halsin's writing mistakes, Tav's inability to comment on polyamory, and the inability to decide my fate through compromise, rather than just going with it or going out into the world alone.