Well the last time I saw her was in February and the last time I had contact via text/email was September. I spoke to her briefly on the phone the day after I last saw her. I had also spoken to her ex a few times, the last being in May when she was in the detox facility.
so February 2016? a year ago. and this is someone that you never had a close intimate relationship with, just someone that you knew and became entangled with. AND her ex. and now you are going to counseling and concerned you have PTSD from this interaction.
This has been the most traumatic experience of my life.
by your choice.