Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. PTSD need to be treated with care. Normally the treatment should be taken care of by the time itself if the person affected by PTSD is active and engages himself in several activities which are interesting and creative. Such activities keep them busy and creative and negative thoughts and compulsive thoughts usually gets redirected or re-prioritized within their mind. Busy people comes out of PTSD very fast. And that is answer for your question. There are psychotherapy techniques such as NLP and DHE to help overcome PTSD. Consult a psychotherapist for further details and treatment. You can post a direct question to me in this website. Include every detail as much as you can. I shall prescribe some psychotherapy techniques to control your fiance s condition. I am sure that the techniques should be a success. Hope this answers your query. Available for further clarifications. Good luck.