Can someone explain this?

Last night I met a girl on the subway with her friend. She was easy to open as she was in costume (wetsuit and facemask). Built rapport, negged her about her wetsuit, kino. She invited me to a house party later in the evening. I said 'maybe', and exchanged numbers.

I arrive, she shows me into a bedroom turned cloakroom to hang my coat up.

Me: Are you trying to seduce me?
Her: bla bla

I lead us out of the bedroom, she looks disappointed. I'm thinking: It's on.

I keep talking to her, later dance with her, she presses against me.

Her: Are you trying to seduce me?
Me: I am seducing you.
Her: Not yet.

Then she moves away. Then she lets me dance with her again. Then moves away. Then it's time to leave.

Curt valedictions and a horny rage.