The girl I'm talking is into submission but at the same time she likes to play brat how do I handle that over text it's all new to me .

SO UPDATE

I managed to play the role on that shity thing. tomorrow we were supposed to go out on our first date and she called it off after I asked her what time we were going to meet tomorrow and after a lil let down I asked her if we wanted to talk about more stuff and she told she is rather sleepy on 00:23 am and I said her ok go to sleep and stuff goodnight she says the same with heart emojis but later she stayed on and logged off 2 hours later.what do I do I'm really lost bcs I wanted at least went on a date with her.