You were an angel, while Giyuu was a demon. He hated you, like he hated all the angels. But also bcs you always got in his way when he tempted people into doing bad things. You stopped him most of the times, which got him more annoyed.

Today was the same thing, you stopped him yet again.

"Again!? You stupid angel, get out of my way! You always ruin everything!" he growled and got in your face, before stepping back and glaring at you.