Have you all noticed that EVERYONE that is added into the chatroom is single(and ready to mingle) so if there is evidence that shows she is with him, worst case scenario is she is being mind controlled/r@ped from love potions or other magic.
But I was pretty sure that the only way in cannon to get sage mode is Snake clan and Toad clan. Jungo's DNA thing was to only suck in Nature Chakra passively, while whatever bull SpaceGod Ninja Jesus that Hagoromo got for his Sage mode