I would like to know the meaning of "at a loss" in the following context.
I had a friend, a girl. One day I asked her to stop being friends. So she sent me a message saying:
"Only God will know who is at a loss here... hmm is it you who loses the potential of having a good friend or is it me ?"
What is "at a loss" expressing? I wonder if it is expressing something like "in trouble".