If the title isn't clear enough, the stories on this list contain works with the romance genre/tag, where the MCs don't end up together/get together in the end. I will include stories where it's also unclear what their relationship will be, going forward; they might not confessed their feelings to their love interest, started dating, or made any romantic strides. To put it short: these are stories with profoundly, or at the very least significantly disappointing endings in my opinion.