don’t work with me, i won’t work with you

i had to work on a paper with someone else but they kept canceling our meetings saying that ‘things just came up.’ i played along until the day it was due, got a three-hour extension & permission to go solo from the professor, and wrote & edited the paper, by myself, in two and half hours. the other person still thinks we’re writing the paper together. i haven’t corrected them. it’s been three weeks since it was due.