It seemed like my ex was seemingly normal at the time, but after 5 years together a traumatic event happened and she began to show many of the signs of quiet BPD.

Before the traumatic event on occasion she would show some of them, but nothing like compared to that after the traumatic event.

I heard somewhere that trauma and traumatic events can be the catalysts or trigger for quiet BPD individuals to show their true sides or the parts of them they tend to internalize since they are quiet BPD individuals.

Is this true?

Can trauma trigger quiet BPD individuals to finally show signs?

TLDR: small signs of quiet bpd I never really noticed due to rose tinted glasses, trauma occurred, then major signs happening.