The song is true.
I'm what he is
"morbid and clumsy"
forbidden, and 
only a friend.
In so many words
that's who I am ...
or appear to be
17, clumsy and shy
experienced and 
nontheless cautious
of people like yourself
than the modest us.
String me along.
Use me, abuse me.
Forget me. 
I am only a friend.