Well done, Elianna!
The end of Aragorn and Arwen's story *is* tragic... why can't there ever be a happy couple in Middle-earth! They're all so angst-ridden...
Actually, Faramir and Eowyn, and Sam and Rosie end up pretty happy, but they just seem to be exceptions
The Sil does read like a history but if you really are serious about wanting to read it there shouldn't be a problem. Good luck!
Middle-earth before school! Always! Better yet, Middle-earth *in* school!