Imagine my horror to discover that I'd been betrayed. I knew it was one of out of five of my must trusted inner circle, so I sent them this message:

Dear Anna, Bess, Chrissy, Diana and Eva,

I know one of you has done the dirty on me behind my back. If you are good enough to admit it, we can put it behind us and move on. If any of the rest of you know who it was, remember it is no disloyalty to rat out a rat - if you know something, please say (privately).

Freya x

I received the following replies:

Freya,

It wasn't me, but that's all I know.

Hugs,

Anna

Hi Freya,

I saw Anna and Chrissy whispering about something the other day, but I suppose that could have been about anything. So sorry this has happened to you.

Bess xoxoxoxox

I think it might have been Diana, but please don't tell her I said anything.

Hugs and kisses,

Chrissy

Oh, no! I can't believe anyone would do that. Mind you, you know I've never fully trusted Eva - I bet it was her.

Hope you get over this soon.

Diana xx

Dear Freya,

That's awful - but I did warn you Bess was not to be trusted.

Lots of love,

Eva xxx

From these messages, can you tell me who I should unfriend, and how you can tell they are the one who has stabbed me in the back?