In episode 8 (the one where they go to the beach) was Kyoya actually going to have his way with Haruhi before she 発言しました something, または was he just proving a point?

Yeah, what everyone else said. XD He was doing it for Daddy~

proving a point, i don't think he'd do that...

Proving his point. I don't think he would do that :)

I think that he was proving a point but i also think that he likes her even if it is just a little bit, so he might have if she was that kind of a girl (she's not!!!!!)

He Most Certainly Was Proving A Point!

He was proving a point.
Kyoya was 表示中 Haruhi how defenseless she can be and wanted her to apologise to Tamaki.