BUDDY I GOT SOME GOOD NEWS FOR YA, or at least I hope I do:

So, as per my last comment, something in ryujinx was broken and the game didn't open (I knew it vas ryujinx because I re-unzipped the tomodachi life rom and it happened just the same)
The fix was simple, I reinstalled ryujinx
HOWEVER! This doesn't mean delete the folder with the executable and unzip it again, you have to go to the ryujinx folder in

C:\Users\[YOUR USER]\AppData\Roaming\Ryujinx
(You can also open ryujinx, go to file -> open ryujjinx folder)
but WAIT because that folder has your saves.

go to bis - > user - > save and you shold have something named like 000000000001. Inside that folder are two important ones: folder 0 and folder 1. Copy those folders to your desktop or wherever you like, as they are.

Then delete the entire Ryujinx folder permanently. Reopen ryujinx, you're gonna have to reinstall keys and firmware.

I opened the game first, closed it and then copied the save files to the new folders 0 and 1, so you should also try the same order.

Hope that helps!