Thank you! This is our very first attempt at making a visual novel, so it's great to get feedback.
There are two distinct endings, and some of the sequences throughout the game change based on your inventory and state of your body (that "dark half of the screen" moment can go a few different ways, or not happen at all :-)). As you might guess, the "leave a message" options change based on your character's marital status, and some of the paths let you leave audio messages instead of text messages.
If you want to play again to see different paths, you can use the settings menu (the gear in the upper right) to crank up the transition speed so you can get through the game faster. :-)
Cheers!