SO after asking one of my so-called friends to stop talking to my bf, when we were dating, she sent me this nasty little thing. and i would like your opinion on how to respond, if at all.

Hi Michelle,
I got the message you left me on my cell.
I am letting you know that I will NOT stop talking to Josh, or stop being friends with him.
Who do you think you are, trying to tell me who I can and not be friends with and who I can and cannot talk to!?!?!?
You may be able to control your other friends like that, but you sure as fucking hell can't do that with/to me!!
I have been stepped on by my friends and family (which I considered you to be) like this before, I WILL NOT allow that to happen anymore!
I would love to remain friends with you,I truly truly do but I will not be told by anyone who I can and cannot be friends with and who I can and cannot talk to.
Michelle, your message was somewhat childish by you saying that you will no longer talk to me unless I do as you say..... It is pretty fucking clear to me about how much you respect not only our FRIENDSHIP but ME!!!
I am sorry you dont feel comforterble with mine and Josh's friendship but I WILL NOT loose one friend who cares about me in order to keep one that doesn't.
Like I said , I would love to still be friends with you, just like we have been for the past 2 and a half years but I will not be controlled or manipulated by someone I thought was one of my best friends..... no wait someone I considered my sister. You were one of the people I could TRUST and I RESPECTED, but as of now that trust and respect is gone. I will leave it up to you weither you want to gain that back, if you don't then all I have to say is wow, thanks a lot for wasting my time, I cared about Michelle, I worried about you all the time, I told you everything and your willing to throw that away because of the fact I am friends with Josh?!?!? SO NOT COOL!!!!
It was fun while it lasted, I guess....
Rebecca Keller.
P.s please erase my numbers from your phone, seeing as I will not pick up. I will how ever respond to email.
Have a great life!