Gabriel & Halle: What Went Wrong?

How did Halle Berry and Gabriel Aubry's love story turn so ugly?
On Wednesday, ET investigates the pair's once-fairytale romance and breaks down the Thanksgiving dispute between Berry's model ex and Olivier Martinez.
Plus, what will happen to 4-year-old daughter Nahla?
Also tomorrow, we're with the Dancing with the Stars winners fresh off their mirror ball victory.