The definition of unsafety in a relationship is when someone cannot take your best interests as part of their own best interests.

I want to live in a world where what is real or genuine about someone is not seen as just cause for rejecting them.  I want to live in a world where we can lay down our need to be right long enough to discuss our often completely opposing perspectives; so as to arrive at a greater perspective than either.  I want to live in a world where it is safe to be authentic. 

Negative emotion is always the red flag alerting you to the fact that there is something there to learn.  It is always alerting you that you have come to the crossroads of personal expansion.  But if you avoid the negative feeling, you also avoid the lesson and the expansion.