[Cody™]

I dont think Marcus is peed off cos he fancies Noirin, I think he is annoyed cos he thought he had Noirin wrapped round his finger. He would fill hatred into Noirin's mind about other people and it worked. Especially with Tom cos it made Noirin feel uncomfortable being near Tom knowing Marcus is around. But finding out that Noirin snogged Siavash mustve come as a surprise to him and cos of the big ego he has, he is now annoyed how he failed to see anything happening between Noirin and Siavash. And now that she Noirin is doing things she wants to do, he is annoyed! He is a control freak!