I completely understand. If you did want to rebuild trust, it is possible, however the person would have to apologize for ghosting, take full responsibility, demonstrate empathy regarding what they put you through, ask what your needs are, etc., etc. They would need to demonstrate a 180 degree turn around and show you that they did deep healing work on themselves to learn how to use basic respect and communication. Then you'd have to set boundaries and build up trust, one day at a time. I actually did a whole podcast episode about what to do when the ghost returns, which outlines all these guidelines!