Having a hitstop on the walls was a mistake ye. When I was developing the game I didn't think much of it but seeing people play it definetly bothers me a bit.
Also it sucks that happened! The issue comes from right clicking outside of the game screen in windowed mode and then left clicking in the menu that you've opened. I'm aware of the bug and it super sucks that I realized once the sumbissions closed... Oh well.
Just for you I show you the final screen:
The mc is actually at her syster's workplace and wants to play with her. At end you fight against her and then she buys you an icecream and go back home together.