My sweet and lovely friend.
My darling friend,i know that you may find my request as something that will be very difficult and hard for you to accept it but i know that my heart always beat on you and i will never forget the moment i meet you in my life.
We have known each other by chance, became friends by choice, still friends by decision. And when we say friends forever, that is definitely a lifetime promise!
I meet you as a stranger, I leave you as a friend,as long as the world stands, our friendship will never ends.All friends never split and even if they do they will meet again.
I know that you have a husband before asking your hand in marriage but all the same,we can still be best friend forever because i know that one day you may decide to accept my wish and request.
My darling friend,i want to assure you that we can keep our relationship secret from your husband and i promise you that i will always protect you as long as you are in my heart.I will do my best to keep our relationship and the love we have on each other private because the love i have on you will never die.I will be glad to receive your respond with good understanding.
Best wishes.