FWIW, on the dating topic, if you're not ready, I wouldn't worry about it. Also, in my various research online I saw several lawyer's websites who recommended not dating as long as the marriage is still in place. There's probably some legal ramifications to this if it ever gets to a D.
The most important thing is how you feel and what your goals are. I just found that information interesting during one of my lower points.
Take care,
Me:45, W:45 S:16 D:13 M:22, T:25 Bomb: July 2010 Putting finances in order for "D" Continue to live in same home-separate rooms