A PMHNP in an outpatient clinic is meeting with a 33-year-old male patient diagnosed with PTSD and intermittent explosive disorder for a medication management appointment. The patient arrives 20 minutes late, appears visibly agitated, and states loudly, "Nobody in this place cares about me. I've been waiting for weeks for this appointment and now you're going to rush through it like everyone else does." His speech is pressured and his fists are clenched, though he remains seated. Other patients in the waiting area appear uncomfortable. Which of the following responses best demonstrates therapeutic communication principles while maintaining a safe clinical environment?