Maybe it's because they always got Sam and Dean on the opposite sides like its always been: Sam was "Lucifer" vessel while Dean was "Michael' vessel, Gabriel pretty much said that they were both "Cain and Abel", now Dean is bonded with Amara due to the Mark while Chuck and Sam are bonded due to the gunshot from the God ColtI mean Deano probably wanted to my mans game is unfukkwittableI remember Dean saying he could sense when she was near like they can track eachother