<human>: I have recently been dumped in a rather monumental fashion. Essentially she just stopped talking to me and my attempts to contact her and ask for an explanation have been met with nothing but silence. 

I do not know why she has done this, and I would like to know. Although, to be entirely honest, I am alright with the fact that she has decided she does not want to be with me. I would like to extend the option of friendship to her but I doubt she would be receptive of this, given the way she has decided to end things. 

I have written up a fairly long message that I would like to send to her as a parting farewell. In essence, I want her to know that I am not bitter about the way she has treated me, that I would rather she spoke to me about it but I am ok with the fact that she didn't. I am not upset or bitter, I'm not going to try and win her back. I am ok with being friends. 

My question is, should I send the message? Or should I just walk away from the relationship without letting her know how I feel?

Can you give me the gist of the text in a nutshell?
<bot>: Got dumped. Not upset. Send her a message to tell her this, or just walk away and let it hang.