This "game" (if you so please to call it that, although its more like a one-off visual short story) really hits a mark showing how there's no going back afterwards. After she kills herself, and you try to replay, you can't. She's dead. Forever. Just like suicide in real life; there's no coming back afterward, you can't just say "No! I don't want to be dead anymore! Please, please I want to go back..." unless you miraculously survive although I wouldn't entirely call it miraculous. Although you can if you delete your save but of course that's quite pointless given the only outcome is a fatal, self inflicted gunshot wound to the brain.
I don't have a lot of words but this is just one of those thing's you might stumble upon and it can just entirely change your current outlook on life. For the better, hopefully. The music is just the cherry on top of this cake though, its really good. Wish there was more stuff like this but I guess I don't as well since it's a pretty depressing topic.