Hi Trace,
I am sorry about your dad and the trauma to you.

(My dad had also committed suicide.)
I see you were also employed in "emergency services."
I was, too. I think I had a way with coping well with immediate/acute situations due to my prior exposure to the same. However, over time, the stress was too much for me -- the combined prior CPTSD and working in emergency services for years, which added more trauma.
I am sorry your neighbor's actions had triggered you. So glad you could share this with her.

WC