Torn between her need for self preservation, her sinfully rampant desire to reclaim what was hers to begin with, and her determination to save Jack from her mother's gold digging clutches, Samantha is spiralling. Actions DO have consequences, and this seems to be a lesson Jack hasn't learned yet, as he continually tuants and baits her to the point of breaking.
Does he not realize who he's messing with? Does he think he's still in control? And how long is it going to take before the secret is out?