It's important to me that everyone understands that if you've got an autistic friend who periodically sends you pictures/videos/whatever of your Thing, because they know you're into it... They love you.
Now don't get me wrong, It may not necessarily be romantic love, they might not want to run off to a little farm in Montana where you'll be married forever and raise little sheeps...
But they definitely love you. And they're so happy when they spot a post about X and go "ooh, my friend likes X! I'll send it to them!".
Because they love you and want you to be happy.