But, but that didn't make sense to Riku! "Why not?" he asked. "What happened that he should not wish to celebrate his birthday?" It was the day he came into this world, a fact Riku was very grateful for.
"I have to do something for him." He was in a serious relationship with the Prince... he couldn't just offer him a quiet 'happy birthday' and be done with it! Not with how much fuss the Prince was apparently putting into Riku's birthday.