Girl on the bus; mountain tunnel. Dance?

On the bus, a girl: medium-tall height, brown hair, window seat, straight white smile.

"What're you, some kind of dentist?" says a guy nearby on the bus. Glad he said something so I don't just feel dumb in the silence.

Mountain road pull-up to the bus tunnel, coasting uphill, I get out, go through the tunnel on my own. Successive tunnel doors begin to close as I walk through them, but I eventually get out.

-

"How'd you get up there?"
Dance. "I'm starting to not suck so much." "Nah, you're really pretty good."

-

Woke up with a DDR song stuck in my head.

E 3 1 0 0 B 1 3 1 3 3 G 2 2 2

That's the one.