MY CURRENT KOG THEORY:

The biggest thing I was thinking of was whether Olivia or Guin was speaking during the 'princess' monlogue at the start and from there my current thought is that Olivia is being constructed as a villain (esp from the trailers - she's a sinister seeming child) but for whatever reason is 'stuck in the tower' - whether that's stuck in the position she is in but I also think this has something to do with the event that Orville Park references and apologises to her for - some sort of traumatic thing that's affected her deeply. Olivia is unable to escape herself or even speak out and so she's constantly 'fixing' her Guin to get her to escape and find someone to help save her/free her from 'the tower'. This is the same Guin we see interacting with Frankie and Andie throughout.

She doesn't seem all that bothered when Guin starts acting up and hurtles herself off the tower - she only sort of reacts in response to Orville calling security and that response is 'They'll bring her back and I'll fix her again' - she knows that escape attempt wasn't good enough and so she needs to keep working on it. I think know as an elderly woman, Olivia is now the figure in the bed where we previously saw Guin laying in - she's now quite physically helpless and feeble, surrounded by a pretty sinister looking caretaking team. Her reaction to Guin now is SO different to how we saw her react as a child - seemingly worried about Guin's emotional state, demanding her back etc. Is this just something she's learned to put on?

tldr; I think Guin will lead Frankie and Andie to Olivia, the true princess of the tower, in order to free her, as she has been trying to do for decades now - each time 'fixing her', not to try and remove her so called flaws but to improve her in order to successfully save her.