I am sorry you had that experience and High School is still so young and impressionable, possibly even more trusting then one should be too.

I am sorry that you cannot afford therapy right now or it isn't an option. Perhaps you could locate some books on DBT, maybe see if there is a group near you that you can get into that may not be expensive.

I think what is important to your healing is gaining on your establishing better boundaries for yourself so you are not ruminating with the stress of how this individual took advantage of you when you did not have the experience to set better boundaries.

When you experience a trigger, acknowledge it and say to yourself, yes that did happen and that it is not happening now. Yes, PTSD triggers are intrusive, something that many who do not experience it first hand do not understand. What I have found that helps me when interacting with a therapist is that I am not told to "just ignore, get over, not dwell, not allow myself" because I never "just" decide to struggle. It is better that I talk it out, work through whatever ends up triggering me and become consciously aware so that whatever it is I know "now" and that tends to reduce the trigger's power over me.

One of the things I have noticed about abusers of all kinds is that they are not willing to accept responsiblity and they tend to "blame their victims" instead. They get very good at "denial", "oh, I never did that or said that you are imagining or there is nothing wrong with what I did". There are also many who believe that if they are more educated, get a better grade than, or make more money than, or do a sport better than it qualifies them to put others down or that they are above others. It is never what one actually has, it always how they use it that matters, remember that because it applies to everyone you come across in your life. This individual was cruel and abusive towards you not because there was something wrong with you or you were ever unworthy, it was because this person doesn't "respect" anyone and simply doesn't have that ability.

Your talking to your fiance about it is due to how you are just not over being "hurt" and you are looking for support and reassurance as you look to move forward in your life in spite of being traumatized by that individual.

When you talk about it to your fiance, how does your fiance react?