Got home, W was sitting on the couch looked like she was waiting for me. Ignored her and started doing some paperwork. After a couple of hours got up and told her that I need something to eat and will be going out. She asked if she can join. I said yes.
In the restaurant she started with the small talk and soon we were discussing her work related issues. She was looking for some approval and assurances for the latest challenges that she was dealing with. I listened, offered some opinion and advice.
She got happier as the time went by. At the end she was back to "normal" - talking about herself and how she is going to tackle the new challenge the next day.
Later I checked her phone to keep track of what's happening with all of her drinking buddies. They have been contacting her a lot but she keeps either ignoring them or declining their invitations to go out. She has not gone out with them for almost 2 weeks now.
Still don't know what to make of it all, but I will keep doing what works and trying to gain back my self confidence.