That’s pretty much how I saw it too.Akecheta's lost love, I was thinking she and Maeve were the same character because of the thing that Maeve said at the end of the episode (something Akecheta and his love always said to one another).
But then I remembered that Maeve can see into every host's mind, so it's unlikely that the two women are the same person.
Maeve saw into ake’s mind and used the take my heart line as a form of greetings/farewell he is used to.
.... unless *surprise*maeve’s body dies and uploads into that hot native woman? I doubt it. That’d be the end of Newton’s appearance and she’s been great.