There are many great love stories in science fiction and fantasy. From Robin Hood and Maid Marian to Han Solo and Princess Leia, we all love the stories that end with some variation of “and they lived happily ever after.”But what about the great love stories that don’t end happily? Because loss is just as universal a part of the human experience as love is, the combination of the two in one story is often that much more poignant. Here, then, are the top 10 best tragic love stories from geek fiction: