On the reverse - I have 2 autistic friends I get to see in person.
They get it. They take no offense if I can't hug, or I can't go somewhere bright and loud on a certain day. In fact, I don't even have to say it, they just pick up on it. I don't have to reexplain anything. I don't have to justify my need to be away from the light.
These friendships don't cost. One costs so little it doesn't even register, the other is actually a recharging presence!