At the End of the Natural Disaster, a Mental Hospital Will Be Reborn at the Beginning?

[Rebirth + no system + no zombies + natural disaster apocalypse + no super powers + decisive killing + mortal apocalypse flow] (This is a post-apocalyptic novel about ordinary people. It does not have any supernatural zombies or space systems, but only ordinary people's way of survival in the apocalypse.) In the previous life, the apocalypse came. After the natural disaster started, the whole world fell into panic, but I survived with my super survival ability. However, I was betrayed by my girlfriend while I was out and died in the apocalypse. When I opened my eyes again, I was back before the end of the world. I swear, if I live my life again, I will make my girlfriend pay the price. But why am I in a mental hospital? This doesn't seem to be the same as what I thought about rebirth!