Captain Roseaen and The Shattered Crown

Explanation I: The reason Dauagen and Roseaen fight is because all of his life she had been nothing short of a terrible person. He (just like his mother) has the trait of kindness which is why he didn't kill her then and there as vengeance. She, on the other hand, would (if given the chance) have killed him with no hesitation.
Explanation II: Hollow's upset because mages train long and hard to achieve such powerful feats of magic. The simple fact that Roseaen taught himself how to use such magic doesn't go through in her head. She thinks he's either lying or has done some type of Black Magic to achieve such.
Explanation III: Renagen Is (My Version Of) the God of Roses, Love, Determination, Hate, and Flames. Which is why Hollow says "For Renagen's sake..."
Explanation IV: Roseaen's mother's name is Rosa Vedan Redchester. This makes Roseaen's last name Redchester. His middle name is Renaver (Ren-a-ver). Which makes his full name Roseaen Renaver Redchester.
When he was very little people would call him Rosa's Red Rose because of the fact his initials were three Rs.
Explanation V: The reason Roseaen grows sad as he walks is that he thought of what Dauagen had said. Some of what she had said was true. However, it was more of an insult to his father more than anything else.