That happened in Life on Mars.
In Season 16 of Grey Anatomy, episode 17, Joe must overcome Alex, and Teddy is experiencing a crisis of his relationship. The subsequent title was "Life on Mars"? Netzwelt revealed that will still happen.
In episode 17 of Gray Anatomy, Joe has to associate with Alex, who is left to Lizzie. When the man suddenly fell on the railroad tracks and had to be burned to the hospital, she and Link looked angrily at a young couple in love. After riding a strange elevator, Maggie realized that something was wrong with Teddy. This admits to having slept with Tom. She now regrets the decision.
Owen also confronted Teddy in the current episode of Season 16, and then Owen confronted Amelia's child who could be his child. When Irving didn't respond, she left him in the stairwell. At the same time, Meredith is dealing with a patient who is not taking insulin but saves it to sell it and use it to fund parents' lives in the elderly.
Shortly thereafter, the patient died because of no treatment for diabetes. At the same time, Teddy and Alex are reconciling in the ABC series, but Teddy still did not disclose that she had slept with Tom.