You can't be scared to fall in love with anything even if you know how it ends.
Because no matter what, it will end somehow and it will hurt.
That is an absolute fact.
But you can't, for any reason, refuse to listen to a song just because you know the last note.
You live through it, you enjoy it.
You experience it.
No matter how scared you may be.
You throw that fear away when you submit yourself to someone else's love and give all that you have in return.