so vivid

I just woke up from a dream that me and my ex best friend, her brother Anthony who I have been talking too and her other brother were on a road trip. We had been driving forever and I don't know where to, all of a sudden we stop at McDonalds and this girl is in the drive thru I can already tell I don't like her because she starts to flirt with Anthony. then we are at my house and shes there telling my sister that's her boyfriend. I confront Anthony and it turns out hes been lying to me. what does this mean?