That is quite a dilemma blueeyedgirl. No one can tell you whether to move or not. Perhaps you need to list the pros and cons of each decision and weigh them in your mind.

I will say though, moving in with someone is a huge adjustment regardless of PTSD. And with PTSD, especially with someone who is only beginning treatment upon themselves, it is far more challenging. You do need to consider carefully what you are getting yourself into!

Could you go for a visit and assess the situation? Have at least a taste of what he is like to live with? Or, if you were to move down there, perhaps stay with friends rather than living with him initially.