Question

The Rabbi wrote in the lectures on the chapter of HaOmanin about agency to hire workers, at the end of section 3, that if the understanding of the law of a guarantor is that it is considered as though the woman herself received the maneh, then it is understandable why in the case of both of them we require that the maneh be given to the man effecting the betrothal. And I am unable to understand why, if it is considered that the woman received the maneh, it is then understood why in the case of both of them we require that the maneh be given to the man effecting the betrothal.