Very Ordinary Couple

I said break up and everything got hotter. Co-workers Dong-hee and Young-eun have been secretly dating for three years. We loved each other thrillingly, avoiding the eyes of others, but today we broke up. The next morning, the two met again as co-workers. They break each other's belongings and send them for cash on delivery, and throw a bomb on online shopping before canceling the couple's plan. Hotter than when they were in love, is this how it's supposed to be?