At first, their relationship might become strained. Zane's anger could make Syrus confused and a bit scared. Syrus might try to avoid Zane, not knowing how to deal with his anger.
One possible reason could be jealousy. Maybe Syrus is getting more attention in the fanfiction world, and Zane, being a proud character, doesn't like that. For example, if Syrus is praised for his skills while Zane feels overlooked, it can make him mad.
The mad dog in the novel could symbolize inner turmoil or primal instincts. It might stand for the characters' repressed emotions or the lurking danger that they have to confront.
The'mad dog' might symbolize inner demons or primal instincts. It could be a metaphor for the characters' repressed emotions or urges that threaten to break free. Also, it could represent an external threat that the characters have to overcome to grow and evolve.
Often in such fanfics, you might find scenarios where a dog has to outsmart a pack of wolves to survive, or there could be a story of a dog being raised by wolves and facing identity conflicts. Sometimes, it's about a dog's adventure in the wolf territory and the challenges it encounters along the way.
I haven't actually read this novel in detail. But generally, in such a plot, it might involve a transformation of a character's personality from being wild and unruly like a'mad dog' to a refined and noble 'young master'. This could be due to various reasons, such as a change in his living environment, meeting someone special who influences him, or going through some life - changing events.