I'll have to go the way of moderation here. I lack any powers or exceptional characteristics to be worthy of being her sidekick, and being her brother could entail royal disputes over the crown which could either end with me dead or having to carry the burden of ruling a people while remaining dedicated to guarding sacred artifacts which are tied to the fate of the world. Finally, while Blaze is cute, and her dignity, powers and dedication to her position are admirable, she is very unsociable and difficult to get along with, and a human being in a relationship with a cat, even if anthropomorphic, seems awkward.

Connor, your not blaze's husband isn't blaze 16 years old?

Blaze is also fictional