SPOILER:
So during the wedding of Aqua and Tiara, Tiara notices that Aishira is wearing a waist ribbon with the color of Aqua's hair. Even Aishira herself was confused why and then realizes that she is in love with Aqua, and was about to disrupt the wedding. Thankfully Akari who was beside her told Aishira to not do anything that will disturb the wedding. But somehow there was this force that urged Aishira to stop the wedding, and this is where Keith appears to really stop her and at the same time gives his blessing to Tiara. I don't know if the manga will be the same as the novel, since I based this from the novel.
Why do I have a bad feeling like somethings gonna happen.