Grey's Finale Preview: Does Mark Have a Big Surprise for Little Grey?

When it comes to promoting Grey's Anatomy's two-hour season finale (airing Thursday at 9 pm/ET, ABC), Chyler Leigh delivers... and then some. Not two weeks after welcoming her third child into the world, Leigh took to talking up the season-ender, in which big twists surely are ahead for the likes of Izzie and perhaps George, sure, but also Lexie and her sweet romance with Mark.

Here, Leigh offers a glimpse at what's on tap this week, reflects on the romance that was not meant to be, and shares her take on two possible goodbyes.

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