Is she just a back stabber?
 

Her childish behaviour last night, alas, has proved what I have thought all along about her
Marcus tried to help her and it leads to Lisa the geezer causing another unpleasant row
Then Noirin gets frightened and stabs Marcus in the back (front) is she any use in the house, apart from good looking?????????:conf:

I think Noirin has chosen the wrong sidekick to hang with. Maybe she feels she has to take Lisa`s side as she scared of getting on the wrong side of her? :shrug:

Norin is nice, she's ok. But I'm unsure of her atm she's choosing the wrong person to chill with because Lisa isn't going to get her anywhere, just hated.

Apart from causing that argument, Noirin has seemed quite nice throughout the program, if a bit boring. I don't think she's 'shown her true colours' or anything like that, but I definitely think that a new side to her has been revealed.