No fan of Arteta but I think he dealt with it well in the post match Villa interview
Whether that will be his stance behind closed doors who knows (maybe you can find a clip in training where Arteta doesn’t shake his hand to read too much into

)
I don’t respect players sulking like that publicly to be honest. However what I will say is that despite the petulance, he produced enough on the pitch (not just the goal) to say “I think you should start me”. That’s the action I want to see from players who are unhappy at not starting.