That called rejection it's ok if your crush rejects you at least you were brave and confessed your feelings, even if you were deeply in love with them it would take time for you to understand and accept that maybe that person isn't meant for you and maybe in the future you might meet someone that will love you more than anyone in this universe, That is life it's not always pinky accept it and try your best. So accept that aqua chosen who he wants to be with and cleared out with kana so she doesn't get false hopes