A supernova happens when a huge star runs out of fuel. Entire galaxies can be outshined by one stars
death.
The word supernova in this context however means when someone finally gives up and ends something and the person on the receiving end of this breakup’
s whole world
may collapse when the end came. Examples
may be a loved one dying and you experiencing a ‘supernova’ because your whole universe has been outshined by one person running out of fuel. Other examples
may be with breakups or missed opportunities.