Jeffrey Dean Morgan, Grey's Anatomy Jeffrey Dean Morgan, Grey's Anatomy

Apparently, in the land of Grey's, even dead guys get jealous with their flesh and blood girlfriends. In this sneak peek of Thursday's episode, Denny decides to accompany Izzy to Seattle Grace (maybe he's hoping to get to scrub in to the solo surgery too?). But when Alex moves in to give his lady a kiss, dead Denny gets all up in arms — and rightfully so considering Izzy just consummated her relationship with a ghost.

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