Relationships are no happy magic pill either. It seems like that from the outside but there is a lot of arguing and bickering in peoples private lives at home. But yes, its better then being alone for most people, thats why they stick with it even though it feels like hell sometimes.
If I were you, I would find other people on the spectrum and see if you like any of those. You have seen that program Love on the Spectrum right? I loved that show so much. Because under all those difficulties reading body language and communicating, there are beautiful souls inside. You and me are similar inside, its just your brain that is slightly different. You just need to find a good match for that , just like I do, and everyone else.
If you feel like you are losing hope, you should watch that show, it's very good.