I love detailed feedback so much, thank you for sharing! :') Writing relationships that progress over time is one of my favorite things to do. I'm glad it worked nicely in the demo (hopefully it worked in the full game as well)
Regarding the error, unfortunately, I had to put a warning about the sprite going missing when hitting ESC since I haven't been able to solve it myself. I need to contact the plug-in creator to see if they can help, but I haven't had the time yet. I'll do it soon!