I was going to write to you the other day as I was skimming through your sitch. Every thing seemed to happen pretty quick for you. Most people suggest to not seriously date until a year after divorce. Now I know everyone is different but it sounds like you haven't work through some of your feelings and learned to be alone.
Something to think about.
I met my GF in early April. I told her I wasn't ready to start dating. We didn't start dating until late August. I'm not too concerned that I started dating too soon. I haven't had many setbacks the last few months. I'm good now. I think the holidays are tough the first year or two after a divorce, so I think some sadness is to be expected. I had a really good weekend with the girls (saw the new Star Wars). We'll have a great time on Christmas Eve, and then I'll enjoy some time with my GF.