https://annabelleigh.net/messages/200007.htm

A pretty good generic example. Very common among younger guys in their teens and twenties who are sincere but don't have lots of experience in relationships themselves. I remember trying to dissuade several posters from sending this dreaded letter to their little love interest that had them so sick with love that they were unable to think straight:(

Worse still, they were often thinking WAYYY too deeply about relationship dynamics stuff for a girl of that age and maturity level. If anything, such a letter would only confuse or frighten her, and surely be discovered by an adult, who in their own mind would now have proof that you were an obsessed stalker, rather than just lovesick for a girl you were missing.

My advice? NEVER SEND THESE! As much as the feels may be unbearably lonely and painful, they will pass with time, and you won't have even bigger problems on your hands.