[tintedshadow]

not sure if thats the case..i overstand noirin is a big girl but she seems easily led at times,my view is marcus has successfully groomed her in his likeness and now she takes his word for gospel..after that night where he called her out on her chumming it up with siavash,he told her he felt hurt when he gives advice and she didnt take it on board..so she had to agree to listen to him more..

thats all i see happening here..marcus has led a rebellion against a housemate who he feels threatened by..i agree with your assumtions on marcus but noirin is simply following his lead in my humble opinion