Was he actually officially diagnosed or just exhibited some behaviors? There are ton of nasty people out there and they don’t have a diagnosis. Sometimes jerks are just jerks and it’s better to focus on behaviors rather than diagnosis. We don’t know if you have PTSD and we cannot and should not diagnose on here but you’d benefit from seeing a professional. Sometimes people on PC still like to play armchair doctors and diagnose on here but it’s against the guidelines of this forum

Are you seeing a therapist?