Has ex-wife really moved on?

We have been divorced for 2 yrs now. She just called me, I mean just, as in 5 minutes ago to tell me of a dream. She had a dream that I got my current girlfriend pregnant and that she ( ex-wife ) would watch our child as my GF and i went out. She said in her dream, she was more than happy to watch our child since she felt it was somewhat a part of her ( ex wife ).

My ex wife divorced me after having an affair with a married co-worker. About six months after the divorce, my ex wife realized what a mistake she made and tried several times to talk me into reconciliation. I told her no. Up until around two or three months ago, for the past year or so she has done everything possible to get my attention. She invited me on her and the kid's vacation this year. Called to get my advice on almost every aspect of her life. Would come to me with tears in her eyes saying how unhappy she was and she wished we could be a family again.

She used to be jealous of my girlfriend and asked if her and I were spending weekends together etc... I guess my question or questions are these:

- Is she finally over me?

- Why would she be having dreams of me anyway?

I know I should not care, but I have to admit it was nice knowing that I was not as easy to walk away from as she first acted. But while she was telling me about the dream, she was laughing about it and telling me about it as if she was telling a friend. We were married 15 years. Together 22 years total. Two awesome kids. I think her and the affair dude are still somewhat together.....