I'm a Grey's fan, but I don't keep up with Private Practice...
Calzona makes me sad I think Arizona did make the right decision in leaving Callie behind. But I also think that Callie is right in rejecting Arizona when she just shows up randomly again... They both dug this hole that just hurt each other, which makes me sad. Oh Grey's angst.
Overall, I think they are cute together, but I feel like Mark and Callie have better chemistry. It's such an awkward relationship with the 3 of them......