I don’t think Maggie is just being petty anymore. The way she is acting here mirrors someone who is in denial/ashamed of their mental illness, which the demons are metaphors for. She doesn’t know how to react, so she pushes it away.
okay here’s the tea: dan and phil are soulmates and the thing about soulmates is that they’re defined either platonically or romantically. regardless of the extent of their relationship, they’ve journeyed through life side by side in a way that only two people who were meant to meet and stay together can. think about it…they met on twitter, texted each other, skyped, and then bam they met and “created this entire world”. fast forward eight years and they’ve gone on tour, created a book, gone to several events, and released a board game (on the anniversary of their meeting, no less). you can tell that they’re extremely close and don’t plan on parting from each other any time soon, so it’s safe to say that their lives are intertwined in a way that only soulmates achieve.