I couldn't feel sorry for Skyler at all, first of all she smoked while she was pregnant! In the beginning she was such a controlling nag to Walt, I just wanted to reach into the TV screen and slap her. After she learned about how Walt was cooking meth, it didn't take her very long to start figuring out how to launder the money and start spending it!!!!
Skylers personality was unstable, when she could no longer call the shots and push everyone around, she was in a depression where she didn't care about anyone but herself. She loved her kids but she was chain smoking in the house. I thought it was interesting how her hair and clothing styles changed especially after she quit working for Beneke.