Wow. This just happened to me a couple of weeks ago! I have had a little 8 year old who has a vocabulary that would make a sailor blush! All he did was yell and curse. I found out that he was scared because he failed at his job (keeping secrets and protecting me) and so he lashed out at me. I don't know how it will turn out with him, but now that I know how he really feels, I can be more understanding. I hope this makes sense.
All the best to you.
whimsical