Out of the Blue?

[addie]

I am guessing that she feels kind of guilty that she is seeking a date so early in a separation. I think that she also feels confused because she is seeing that I am being very honest and supportive and that I am not that bad.

I think you hit the nail on the head. You are probably not reacting the way she expected you to and this is causing her a great deal of confusion about her decision to separate and most likely she is dealing with feelings of guilt as well. It is normal for WAS to be moody. One moment they are friendly, the next moment distant or angry. You handled it well. Just continue what you've been doing.