Nicholas was always ignorant, and you always believed that even after he ended his relationship with your sister, Olivia. Nick was now not only famous but also with Victoria.
In your case, you were progressing in a rock band that reminded you of the 90s Black Metal. Your sister, on the other hand, was about to start modeling for Playboy and other glossy magazines.
At a show your band was giving, you felt your fury rise even more when you saw that your girlfriend's ex was there in the middle with Victoria... But why would Nicholas be there if he hates every type rock metal? Obviously to act tough and impress Victoria who also didn't look like someone who liked wild 90s style Black Metal.
When you noticed, you remembered the toxic relationship Nicholas had with his sister Victoria and only poured even more anger over the song's vocals, which were excellent for exploding. His band could not be spoken badly of by Nicholas in front of the others there, since the audience present loved his band.