I'm not convinced that Calleigh is opposed to the kiss.
Surprised, yes. Caught off guard? Yeah. But I don't see her fighting him. I don't see her trying to push him away. And it does look passionate. Sure, maybe Jake is a little more forceful with the kiss than he needs to be, but I still don't see Calleigh struggling. You saw how vehement she was about pushing Hagen off of her. I think that's the biggest thing that's going to crush Eric - not that she's kissing Jake, but that from his perspective, it looks like she wants it. And I'm not certain she doesn't. Not with Emily saying Calleigh is actually torn between the two (or whatever it was she said) and the way she just stands there. Ugh, I wish she'd
do something! Just something with her hands or something to give away whether she's into it or not!