Calle got the breakup email from her boyfriend. They had agreed that if either of them ever wanted to go out with others, they would tell each other; in addition, Calle swore in that case she would never become his "friend." She describes the situation as follows:

I received an email telling me it was over.
I didn't know how to respond.
It was almost as if it hadn't been meant for me.
It ended with the words, "Take care of yourself."
And so I did.
I asked 107 women (including two made from wood and one with feathers),
chosen for their profession or skills, to interpret this letter.
To analyze it, comment on it, dance it, sing it.
Dissect it. Exhaust it. Understand it for me.
Answer for me.
It was a way of taking the time to break up.
A way of taking care of myself.

Read more at: http://www.huffingtonpost.com/patricia-zohn/culture-zohn-take-care-of_b_185134.html

Karl lagerfeld receive the mail and reply to design a -Break up dress- on chanel behalf.