Ok, I'm all for watching this meltdown, but this isn't that serious tbh.
It's not like she gave him coke and ex or something.
I highly doubt she did it maliciously, she probably wanted to help him ease his anxiety and found it easier to just get the meds herself, rather than him trying to get the prescription filled on his own time. Sure, it's illegal, but in the grand scheme of everything else he's been up to lately, this is probably the smallest thing to make a big deal about.