I feel so sad

Ben and I have just come back from warhammer (a strategy game) He absolutely loves it but the other kids just don't get him and he is annoying (I hate sayng that but I can see from their 7 year old eyes that he is) I just want to say to everyone, he can't help it he has autism. He spent the game calling the other child a loser and winding him up and finally when the other child started crying in frustration. I said to him Ben you've made him cry and he says good thats what he deserves. I know he says that because he does feel bad but his defense mechanism is always to say it was their fault or they deserved it. But I see him at home when I know he thinks he is a horrible boy that no likes. It just makes me feel sad for him, he wants friends so badly but pushes them away.