This all started with the Cami argument. That led to Chloe doing that poem and Perez being isolated. Then everyone else got in with it. Katie and co have been actively provoking Perez for days. It's the same as they did with Ken. But Perez is more than they can handle and he started pushing back.
Now he's become unmanageable but Katie is still winding him up.
Now he's become unmanageable but Katie is still winding him up.