Thank you for your kind words and feedback, they're very much appreciated! :)
I personally believe the movement speed is a bit too slow sometimes, and the main reason behind this was that the whole game was designed under the span of a day so that we would have as much time as possible to execute it and make it happen - which resulted in some bad design choices, such as the staircase filled with 3 long voice lines for which the only solution by the time we discovered that as a problem was an artificial slow down to the player (which to be fair, is not really a great move or fun mechanic, though i guess it works as a last resort haha).
I'm glad the prompts lead you as intended, it was critical to get the player's attention as much as possible given the house's shifting nature and the overall dark environment.
And no, you cannot break the loop and the game is repeating endlessly as intended. :) + you are absolutely correct with your assumption.
The protagonist is stuck in an endless limbo of repeating forgetfulness and rediscovery of love, joy, pain, regret and powerlessness. The voice on the phone is the ex lover of the protagonist who, despite how much he loved him, grew emotionally and physically tired of taking care of the protagonist, especially once he was hurt by him due to his (purposefully unnamed) conditions. The house is quiet, has a bunch of boxes and no sign of life as the caller had left long ago, leaving behind only a few hints and pieces of memory. Every time the loop starts, the protagonist, much like the player for the first time, discovers all there is visible and audible, but something much deeper, much darker, and much more tragic that one cannot grasp as clearly as a picture or rose in a room also surfaces. The player's realization at the end that the game has restarted is unique, as the protagonist does not have that luxury, however it is fun to read and hear from multiple people that they were unsure whether the game ended or not. That was semi-intended, as the confusion it harbors fits with the confusing nature of the house, its caller and protagonist. :)