I understand the point of this is two people telling each other they love each other literally seconds before the world ends, but that's it.
This in turn becomes a click-fest, and no attention is paid to writing whatsoever as you literally have no time. You either read and die on the first 3 pages, or get far through the game having no idea what you just did.
It's meant to be sweet but ends up being annoying, as I am one who likes to read what's being said, and having that option taken away from me is irritating.
A better way to go about this would be to remove the time limit, and make it so you can only do 5 actions. That way you can read what you're doing, and you get the brevity you were going for.
Nice idea, poor implementation.