Was she actually content during novel 9? Itsuki's dialogue basically said 'haruhi is mad jealous of how close sasaki apparently is to you', but you're kinda right, she was never obviously ticked off at any point to the best of my memory.
Kyon being God kind of makes the Haruhi vs. Sasaki that's coming in novel 10 sort of odd. If Kyon finds out he's God, he'd probably be too apathetic to cause any major chaos and nothing would happen, but would do nothing to resolve SOS vs aSOS. If Haruhi is God, then Kyon actually has a dilemma where he has to decide whether to keep Haruhi as God or help aSOS make Sasaki become God.
On pure and baseless speculation, it'd likely end up with Kyon choosing Haruhi to stay as God, but she'd rather live a simple existence with Kyon so she surrenders it to Sasaki.