TLDR; Our console could not keep up with me trying to go into the nether and my gf flying with her elytra, decided to restart the game and now i am in my overworld coordinates but below the void, seemingly not dying and my girlfriend respawned after dying with 42 levels.
We had been exploring a bit and i decided to go home through the nether since the portal to our base and the one near an ancient city were close enough to be linked. The nether loading screen froze while my gf continued looking for a way home.
After not being able to load in the nether I told her to restart whenever she felt like it. Shortly after she died to fall damage and tried to respawn but it didn’t work at first. We quickly restarted and heard some xp collecting noises.
When we loaded the game back in, she was in the spawn coordinates with 42 levels and myself in nether, seeing nothing but red all around and falling fast.
Now we have no clue what to do, I tried rejoining a couple of times but that didn’t seem to work at all. All help is much appreciated!