[Your Name, & Address here]
[Recipient Name & address here]
I am writing in to tell you that I am missing you a lot these days. Now, I understand that how it feels to live apart from a loved one.
I just want to ask you that can we be friends again? I have not seen you since a long time.
You have been an important part of my life and, I cannot think of living without you. I don’t want to loose you.
I want you back in my life. Please call me and tell me how do you feel about our relationship now.
I wait for your call.