These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Belphegor and Niou. Mixed in with utter confusion about their feelings after the 2012 Valentine's Day event. Made official after Fran figured out that Belphegor had a crush on Niou, and said so out loud for all to hear during prom the same year.
If Byakuran kissing Belphegor right in front of Niou helped or not can be questioned.
Death and Death were paired up by the town as husband and wife, but started seeing each other in earnest after a time. Mutual Confusion.
Tir McDohl and Lion Ushiromiya, who were both forced to confront their feelings after some awkwardness during the 2012 Valentine's Day event.