Here's the latest on Grey's from Kristin at E! Online:

Any Grey's scoop? Please! Are Cristina and Burke actually gonna do it?
Ummm...yes, I'm pretty sure they have already played dirty doctor and naughty nurse, if you catch my drift. But if you're talking about taking the plunge and becoming man and wife, well, it doesn't look likely! Sources tell me that Cristina will soon realize that the only reason she said yes was for him. And by the time the intern-on-intern action goes down, I'm told the Cristina and Burke may be on the outs.

I saw your latest Vine show, and I'm aghast. Gizzie? It is happening?
Did my facial expression not give it away? Don't make me spell it out for you. Don't make Shonda Rhimes come and kick my ass.