You're getting it: Surge is THE Sonic hater. That's her thing. Shadow is apathetic towards him with some begrudging respect, Blaze and Silver and Knuckles all became his friends, and Jet is just here to win at sports. Surge is the one where the hate is real and it's PERSONAL. The thing that sets Surge apart is that she's the ONE character who has it out for him but isn't a straight up villain. We've seen Surge interact with Sonic's friends, and she doesn't seem to have any beef with them at all. It's JUST Sonic. She just hates that fucking guy.
In a way I would consider it a letdown if they ever had an arc where they really reconcile their differences and become friends. She would lose the thing that makes her unique. They've acknowledged that Sonic often makes friends with his rivals! Right from the start, he said the reason he let her live is so she could become his friend eventually. Which means that to Surge, letting go of her grudge would mean that he wins. She's not gonna let that happen. She's way too prideful for that. It only made Surge more determined to stay his enemy. It's about the principle: he underestimated her, and now she wants to prove his whole philosophy wrong. It's spite all the way down. And that's awesome.
The most at peace I would accept them being is that he helps her through some big arc about her past and she goes from wanting to kill him to just wanting to beat him in a fight and rub his face in the dirt. But they should NEVER *like* eachother. Everything he does should piss her off forever.
That sounds like she could have a very Ryōga dynamic to Sonic’s Ranma. In both cases, they may work with the protagonist toward a common goal, maybe defend him out of a sense of honor (whether it be “this isn’t a fair way to win” or “only I’m allowed to defeat him”), and they may even have common friends, but at the drop of a hat it’s gonna be “prepare to die” again. And it will be absolutely petty.



















