Hi JA customer and thanks for writing.
I am sorry no one was able to connect with you in chat. I read your post several times before I understood what you were asking and I hope the language barrier is not a problem and that I have understood this well.
Is your question that you are not sure what you to make of the email? If so, I believe the message is clear that your friend is saying, I do not wish an intimate relationship with you and I do not want you to expect that from me, but I would like to remain in your life as a friend. I do not think that it is ambiguous or ambivalent at all.
I am glad you said that you are open to change because if you have an intimate relationship with this man he is saying
We are not lovers any more and do not expect that from me.
I hope I can help you further on this. Please let me know what might be confusing you and I will do all I can to help you with this.