I roughly remember bits of the plot, but can't remember the name at all.
Basically, a man finds out that he had a son from before he got married. He deceives his wife for a while and does not tell her about it, but she eventually finds out. At first she is mad, but then she learns to live with the fact and even tries to be closer to her husband's son. She buys her husband's son assessment books etc. There is a scene in the drama where the man and his son play basketball (?) and they both go home to the man's place where the wife cooks them both dinner. Some where in the middle of the drama, the man and his son go on a overnight trip. The wife comes to visit. During the night, on her way home, she gets involved in a car accident. She is badly injured, but does not die. When she finally leaves the hospital she returns home and feels really useless because she can't do anything. She eventually moves back home with her parents.
That's all I can remember. Not sure if that helps.