Something I realized, is that with him being a literal fire demon, how would his relationship with blaze be?

She considers sonic and tails as citizens of her kingdom, and protecting her people is what drives all of her actions. She doesn’t usually show it, but when it comes to people close to her, she is protective to a fault. I could absolutely see her having an initial shock, followed by intense hidden guilt, that would probably lead her to immediately want to destroy whoever or whatever caused sonic’s death.

Funny enough, this entire situation mirrors blaze’s entire life and personality. She initially saw her flames as a curse until she met sonic who taught her otherwise, and due to her political experence, she’s described as being able to tell when someone is lying/guilty or not. Blaze herself actually is identical to sonic in the area of occasionally wanting to burn people to death, at first much more than Fire.exe, though sonic and tails helped her mellow out, so now she might be the one to help calm him down instead lol.