Dating can be hard, especially because so much of it, despite all of our effort and most optimistic energy, turns out to be a giant waste of time. Well, even the "wastes" aren't entirely useless: Even when relationships don't work out, you can be fulfilled by them for having had interesting experiences and learning things about yourself, other people, and what you do and don't want from a relationship. All of that is important, and we should value the experiences that give us that information, even if those "experiences" involve having nothing to talk about with someone who smells bad and makes racist jokes. But, that said, there's really nothing that can take the sting out of spending weeks dating someone only to find out they're actually a registered sex offender, or believe they've had contact with aliens and that the FBI is after them as a consequence. Or just that they're utterly boring, you have nothing in common, and you can't wait for the date to be over so you can hang out with your friends. That is when dating can truly turn into a huge waste of time for you and everyone else involved.