@Butrflynet,
I follow you on this, Butrflynet.
I don't know all about your autism situation, got mit, but this is looking like obsession at an early stage.
Or it may just seem so, because you have so little interaction with your own age group. I think that is a big problem for you, what we call the "elephant in the room". Not everyone your own age will reject you out of hand. I think you need help meeting people who understand you, people of your own age.
I agree you should leave this child alone, while I somewhat understand your sense of connection, but it is connection in a kind of vacuum re your own age group. That needs to be remedied.