She knows Belle is locked away, and given that she went to the trouble of having the cup stolen and knows the sentiment behind it, she must know just how much she means to Mr.Gold. So why, why, WHY, doesn't she use that knowledge to get him to help her? * * That is the absolute last trump card she has and will ever have. She'll exhaust everything else before it. Because if Rumple is going to beat the stuffing out of French for thinking that he killed Belle, there will be hell beyond words to pay over the imprisonment once Rumple has Belle back.