Im about to replay stray (unrelated), so I put on atsv in the background, and I realized something.
Gwens entire arc is in this movie is explained in the first 3 minutes.
All she does is talk about miles but she's constantly relating her life to his, saying, 'he's not the only one." She wants to be like him, have the type of courage he has to step up to miguel. Not only that, but she starts with "lets do things differently this time" so we know the version of her that is speaking is the one at the end of the movie, when she is trying to fix what she did, and unhurt her friend.
Please, just rewatch the first 3 or so mins of the movie and tell me im not crazy. (It is taking every bone in my body to not go off on a tangent rn)