She died this morning. I've never actually caught the moment when my bettas were slipping away. :/ Her breathing slowed down, and she was looking me when her gills stopped moving. I felt/feel horrible that I couldn't have done anything but watch her die- and despite my not wanting to, I couldn't not watch her die, either, because... it would just seem... wrong.
So sorry for your lose. :( Watching them die is the hardest thing...I spent all night making sure Alexander would go up to the surface...But then I fell asleep only to find him dead. </3 Losing betta fish or any pet is hard.