"Hannah, I'm upset because [specific thing she did or didn't do]. When you [action], it made me feel [disrespected/ignored/frustrated]. I need [specific change] going forward."

Break down the specific moment she let everyone down. Was it the betrayal? The bad decision-making? The Comparison: Compare her current "crap" status to her "golden era." The Verdict:

[Current Date] Time: [Current Time] Location: [Unknown/Unspecified] Incident Type: Verbal Expression of Discontent