The couple needs to have a complete time to understand and be sure for each other if at all you look forward for a long run in life.
Exchanging e-mails from the person is again one of the very beautiful things to do. It should not be exactly the love letters but simple experiences or remembrance of the things that made you happy. Sometime what you are unable to say is very well expressed through writing. So go ahead and open your heart in a letter to the person whom you would like to see as a future relationship partner.
So people, sometimes going old school is really good and when you find the person to be with you all your life, why not take the time to decide!