It’s going to be weird for bae to basically be the alpha dog in the show once they get to neverland. He is the only one who knows the world. Plus if its not the paradise that it is in the original Disney film then Rumple will see what his soon had to deal with alone growing up and I am sure that will bring up memories of bae in neverland in bad situations wishing his papa was there to help him and take care of him