Watch Grey's Anatomy Online: Season 19 Episode 20

Did Simone walk down the aisle?

On Grey's Anatomy Season 19 Episode 20, it was time for the wedding, but a last-minute change of heart threatened to derail everything.

Meanwhile, the attending surgeons made their way to Boston, forcing a reunion between Nick and Meredith.

Was there a future for them?

Elsewhere, Bailey got a nasty surprise in the form of a blast from the past.

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