I don't understand why people hate Hayato's bride, I think it's understandable, because the woman’s decision takes into account the interests of many people, not just her own,, especially saving three major families at once. Many parents treat their children like items to be traded, and Hayato’s bride probably didn’t even know about his romantic relationship with Touma. Honestly, I’m more annoyed with Hayato himself...he’s indecisive and a coward for not telling Touma his true feelings that night and even he didn't give the letter and amulet directly..That’s why Touma can’t forgive him, even after all those reincarnations.