While the preview pictures for Grey's Anatomy generally keep big plot points under wraps, you can sometimes get an interesting peek at future episodes from the photos. Such is the case with a recent sneak peek of an intern in tears on Season 9, Episode 16: "This Is Why We Fight."

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Credit: Ron Tom/ABC

As you can see in the photo to the right, Jo (Camilla Luddington) is alone in a bed, wiping away tears. What could upset this normally fierce and unflappable doc? We have two theories. 

Another photo from what looks to be the same scene shows Jo talking to Alex (Justin Chambers), and she looks surprised and possibly even offended by what he's saying. Perhaps their friendship finally reaches a boiling point, with one confessing feelings for the other. If the other doesn't reciprocate, that could end in tears, whether it's Alex rejecting Jo or vica versa.

Alternatively, we know the interns spend this episode fearing for their jobs due to the hospital's financial crisis. Is Jo in tears because she's been fired, or thinks she's about to be?

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Catch the next new episode of Grey’s Anatomy on Thursday, February 14, 2013, at 9 p.m. ET/PT on ABC.