Throughout the entire story of Xenoblade Chronicles, the one character of the seven heroes I have been most entranced in is... Melia. Everyone suffered a great deal, but I feel that Melia suffered the most. She watched her faithful servants and her father die in front of her, her brother sacrifice himself, her people turn into mindless Telethia, and, worst, her crush fall for someone else. Of course, I can tell she understands about Shulk and Fiora; they were childhood friends from the beginning and were definitely meant to be. Still, it pains me to have seen her undergo these painful experiences, but it gives me a warm smile to see her overcome her obstacles with willful determination. She refused to go down no matter the odds and kept on fighting. We all can use her as an inspiration to never give up in life.
Plus, not many people mentioned this, but even though Melia can't be with Shulk, there's someone else who isn't taken... Dunban. And now that I think about it, besides Melia herself, Dunban is the most refined in the party, and also the most mature and rational. I can definitely see Melia and Dunban having a good relationship together. :)