i liked your game, the mechanic was really creative, and how silence is an option is also cool, maybe a meter that tells you how many interactions you can afford to stay silent in will let the player strategize about when to use them, and maybe you can add some “landmine” interactions where staying silent in those will instantly end the date.
anyway i really enjoyed the game but couldn’t finish it because it was brutally difficult, an easy mode where there are some checkpoints across the date where you restore the letters could solve it.