Someone from another site was ranting that Belle couldn’t be Rumple’s true love because he loved his son so much, Bae’s mother had to be his one true love. (Isn’t the show pretty clear that Rumbelle is true love!)
Yeah, I’d say that’s a pretty well established fact, considering her kiss was in the process of breaking his curse. I think that the love Rumple had for Bae ended up surpassing any love he’d once had for his wife.