Time to split the baby in half.
Ossetia did want independence from Georgia.
Georgia was fighting this secession. And Georgia was inflicting great harm.
Ossetia doesn't like Russia or Georgia, but they'll strike a bargain with the Russians to fight off the Georgians.
Then they'll fight the Russians to keep their independence too.
And the Russians are using the Georgian aggression to hide behind.
This is a great excuse, a cover for the Russians to attack Georgia. They needed a reason to hide behind.
The Russians certainly oppose Georgia leaning towards NATO, and the Russians still want to control the Caucasians who certainly aspire to leave Russia: Chechnya, Dagestan, etc.