Complex sentence: Worse, Ōba becomes estranged from his wife following an incident where she is sexually assaulted by a casual acquaintance, and over time becomes an alcoholic and a morphine addict.
Split into simpler sentences: Worse, Ōba becomes estranged from his wife following an incident where she is sexually assaulted by a casual acquaintance. Over time Ōba becomes an alcoholic and a morphine addict.