@PedroSimao002 The love of Akki doesn't come out of nowhere,it was mentioned in chapter5.5,Akki showed that she fell in love with yori in the first sight.Although it is really weird to put such a important thing in an Extra -_-||
Akki didn't confess her feelings probably because she found yori was never interested in love,so Akki just keep it so that she can by her side as always.Now she know that yori found her love,So she wish yori can be happy,like in Seishun Buta Yarou,Shoko San said“I wish the man I love can always lives with happiness,can always keeps a smiling face,even though the smile doesn't belong to me.” We don't want a love triangle cause it always end up breaking someone's heart,Whatever, it's one of the most important themes in romance forever,the most famous of them may be White Album2.