Rewatch episode 9. Their attitudes seemed kind of flirty to me. (manliness rating on a farewell note, Jil happily reflecting on the fact that she finally called him by his name) At the very least, Jil seemed to have a crush.>>12762832
That's only true during the early episodes.
Neeba got paid off by the other coach and screwed his team over intentionally, earning the scorn of the cheerleader in the process.
Jil's the former benchwarmer that's gotten significantly better and turned into a reliable backup with a bit of practice and is about to take his place.