The hope most of us hold for romantic comedy-dramas is that everything will ultimately work out in the end. But, in real life, relationships don’t always turn out that way. So when filmmakers try to fuse those two divergent scenarios, the results can be unexpected, even dismaying, if not handled properly. However, when addressed with a skillful touch, such stories can be surprisingly entertaining, even revelatory, in many ways. So it is with two alternative love stories now available for streaming online, “Magic Hour” and “Departures.”