As Frodo and Sam clung to the burning flanks of Mount Doom in Return of the King, the One Ring destroyed and their quest complete, Sam thought of Rosie Cotton, a girl back home in the Shire. If there were anyone who caught his eye, Sam lamented as the lava crawled near, “it would’ve been ‘er.”
Yet even as he mourned, there’s no doubt that the two hobbits’ hearts were full and glad. All of Middle Earth was saved! The darkness had been vanquished, the armies of the West delivered, and a new age of peace was dawning thanks to their bravery and sacrifice – even of their lives, they suspected, as the volcano melted down around them amidst the Ring’s death throes.
Of course, we know that Sam got his girl, because a bunch of eagles appeared out of nowhere and pulled the pair off the mountainside before they crisped. (Seriously, where were those eagles and their convenient carrying ability five volumes ago when Frodo first faced thousands of miles to Mordor? Talk about your continent-sized plot holes…)
But I digress.
My point is, it would have been silly to think that Sam underewent those unbelievable travails just for Rosie. He didn’t reach Mount Doom to find Rosie chained there, waiting for rescue. Had Rosie never existed, Sam would have gone. Much, much more was at stake – both outside the two hobbits and within.