Guilty Party (UK)

I don't want to talk about what happened at my birthday party, but I feel like I have to. Yes, fine. I was almost held back. And Preston... how could you? This is all I have to say to you. And Alex, you knew about it this whole time? You both were the people I trusted the most and I can't believe you could do this to me. And, I really want to know who sent me the cake. Charlie was the only one not invited to my party so...