Kim listens to the pair's conversation from the other side of the door and is pleased that they're arguing. She believes Jamie regrets marrying Andrea and that's why he didn't tell anyone about her and Millie although Jamie states he did that as he was protecting his wife and daughter from her. After Jamie has left, Kim reveals to Rhona that Jamie is married with a child and didn't tell her about them.
Kim eavesdrops on the couple arguing and finds it satisfying. She believes Jamie is unhappy in his marriage and kept their family secret to protect Andrea and Millie.  After Jamie leaves, Kim tells Rhona that he is married with a child and concealed this information from her.