The second season deals with a series of dramatic events, since Barron was born after Roxy and Darren were born, but there seems to be doubts about that. It seems that there is a bad track when basketball player Kadell James appears claiming that the child is his child. Over time, Robin received some unexpected news that reflects the path of everything in her life.
I didn't believe a bit of the episodes I watched, driven by overly snarky dialogue. But it's a guilty pleasure, showing us the sort of glamorous city and lifestyle not available to most of us right now.