First it looked like Amber Rose was into Nick Cannon … then she threw everyone off the trail by grinding on Nick Simmons — but this new video might tell a different story. Cannon and Rose hit up Knott’s Berry Farm Friday night in Buena Park, CA … and they were spotted in the front row of Xcelerator — with all the rows behind them apparently cleared out for some reason.

Now we know it’s just a ride … they’re not walking hand-in-hand or anything — but it’s still pretty telling that the two of them went to a theme park together, alone. Think They’re Just Friends? Plus, Nick Simmons has repeatedly said he and Amber are just friends — even though it seemed like BS.

So, we gotta ask …