Granite, I know this hard for you, with your son in a dangerous situation and you with your T.
Perhaps some of your fear about your son is being projected into anger at your T? In both cases, there are things maybe you feel like you haven't a lot of control over and this leads to fear, which leads to anger. I may be wrong and forgive me if I am off base, just a thought....
Please be gentle with yourself, be patient and give yourself and T some space for this to work out...