I would not say complete asshole - but it doesn't usually help anything to lash out at them. If close friends, then I would apologize and next time not be around them when I was feeling unable to deal with bumbling. I can go be around strangers or students (They are very self absorbed) and not be isolated but not have to engage with anyone who is trying to be kind and messing it up.
I can't be around people who try to be comforting when I am upset. I find their attempts awful even while recognizing how much they are trying to be kind.