Imprinting Question

Since Jacob imprinted on Renesmee and he's whatever she needs him to be, what if she needs him to be a vampire? (I know she wouldn't but let's pretend like she did) Would he be able to turn into a vampire? Because it says vampire venom is poisonous to werewolves, so do you think imprinting would over-rule that? And if he could, do you think he would? Thanks for answering my question and I love your podcast!