I think she is saying that it is hard for her not to answer with a yes or no, but that she thinks that not doing so is the most helpful for you. I have no clue why she would think that would be helpful, but some ts have crazy ideas about what is and isn't helpful.

I would interpret it as it not being safe to ask those kinds of questions, but I tend to go to the "not safe" place. In fact, I don't think I ever will ask if t will miss me. I know all ts care about me, but I don't think they miss me the way that I miss them, if at all.