the best thing is to talk and ask her cuz guessing may make tnks worst

but to me, i think that the 5th date, u might had turn her on. So she kinda took control. and now, Maybe she is trying to ask u to take control back. Try to take control for the moment and see her respond. If she just follow and lean on, u got it dude! But if she stars to limp, ask her y and the reason of her action