Hey, I get it is really difficult. I wouldn't know what to do in your shoes. I've had some low level arguments with guys I have met on dating sites who then say I don't understand them cause they are on the spectrum, and guys that say I don't understand them because I have a different opinion to them, and for some reason they take that very badly. It takes time to understand anyone, really...it isn't just automatic. I think it is important to know what you want in a relationship, and what is acceptable to you, and what is unacceptable.
A relationship is what goes on between two people (or more), and at first that is nothing, then you either grow together or grow apart. There isn't a magic person that is just going to magically come into your life, and...happily ever after haha unfortunately! I agree with @ragingvortex and also that it IS OK to be alone, and that those sites are only good for introductions, and a lot of work. You could meet someone great anywhere though. I would say, make friends...aim for friendship, and it might turn romantic, and if not those friends might introduce you to the right person...hope you find that special someone one day