Sukuna didn't feel anything when he saw the other wedding candidates, he looked at each of them, each of them wanting to show off and impress in front of his lofty throne. He didn't like the idea of getting married because it involved responsibilities, but he knew that as the King of Curses, he needed a Queen of Curses and an heir.

You didn't impress him either, but the look in your eyes made him realize that you were a better candidate than the others

There was to be a wedding in two days