im 22, and i’ve just starting dating this guy he’s 22, he told me he has aspergers autism..what are the signs? do they talk funny? rock left and right, someone that knows please explain clearly for me thanks

I have a 8 year old son that has autism. He is very uncooperative and hard to deal with ,he alwayas tells me to shut up and go away. It hurts my feeling and I do not know how to express my feeling towards him without wanting to give up
how can i get my 8 year old son to stop being so violent how do i tell him it’s bad when he tells me to shut up go away and swings at me. He is a very big boy with a big heart but know connection