Why did Damian accept who he was so quickly?
When he first finds out who he is he's scared and goes off running for miles and gets to those docks and screams "WHY ME!? WHY ME!?" but after that he seems completely fine with killing people and being the devils son. He just seemed so distraught when he found out yet the next day he's perfectly fine with it and seems to be happy about it.
I figured they'd be some time in the movie of him denying it and refusing to be what he is, but he's just like "hmm maybe this isn't so bad" the very next day after he was screaming "WHY ME!? WHY ME!?".
Thats what i love about these high school girls, i get older they stay the same age.