She's got a new boyfriend so this isn't unusual. They seem to be getting on very well.
However, this just happened:
Bed squeaking for about five minutes.
Bed squeaking for about one minute.
Then she shouted "Oi!"
Then she shouted "Well you can't!"
Why do you think you reprimanded her boyfriend? I think I could make a good guess.
He's really going for it now.