I struggled with the voice on this one. I tried telling it from several different points of view and in different tenses, but I kept returning to variations on the opening line.
It’s not quite perfect, I don’t think. I’ll step away for a bit and reexamine it in a few days, see if I can put my finger on what needs fixing.
Wow, this is really great. The dual imagery of the metamorphosed star and relationship is so tightly entwined.
“Stars get new names when they go supernova” is such a sad line in light of the implications, the scale of what truly matters to this narrator.
I can’t think of anything to revise. If pressed, I’d say the use of the word “decorations” makes me think this happened over a holiday, like Christmas, though I think you’re just describing wall art, etc. And that certainly doesn’t detract from the story.
Mayra 
falconesse 
jesteram