All he’s interested in is his son. Which makes you wonder, depending how the finale works out and if he finds out about Belle
What if Regina offers Belle to Rumple in a deal and he says no becase Bae is his main priority? Do you think he would be willing to set back his plans to find his son in order to help Belle? Of course right away I wanna scream “YES!” but all of his actions are for Bae and Bae only, how will Belle fit into them?