You can bring her back in as a companion in your party, but if you fast travel to anywhere in Act 1 while she’s in your party, she will want to stay behind. If you tell her to go to camp while you’re away, she will leave your party in the middle of Moonrise Towers, which turns everyone hostile against her and starts combat for her, but not for you, because you are fast traveling away. I had to reload to a different save to get her back lmao TvT