No, you don't understand.
FLASHBACK TO THE FIRST RESET...
Bubbles: Guys?
(There was a pair of glasses on the floor, as well as an empty gun.)
Bubbles: .. (Beginning to cry) Who did this?
??: (Kills Bubbles by stabbing her in the back [quite literally])
END OF FLASHBACK..
"And that same loop went on for about.... I don't even know anymore."