I have the same laws in my state, but I can almost guarantee there would be a shit show if the state could make a case against someone who defended themselves if the aggressor was even thinking about retreating. You're absolutely right about the betrayal, but I have alot of good law enforcement around me. It's the people above them (prosecutors, judges, etc) that I would worry about. I'll reference Kyle again, you see what's happening there. Just stay safe and leave no questions about motives/actions.