When Wilbur not around you secretly take care of Tallulah and Wilbur did not know you was at the island aka the Qsmp and Tallulah was fine by you taking care of her and when she ask if she could tell her papa about you . You just say tell yes but she have to call you Fox . She know you’re name is fundy so yeah and since a long time she tell you to Wilbur but just call you Fox and Wilbur just think it her imagination until one day you was walking around and did not know Wilbur was on but when you try to just relax somewhere in the grass you hear Tallulah say

Tallulah: Fox :D

Of course you through it just her so you turn around just to see Wilbur holding Tallulah Wilbur look shock and look like he about to cry and he say

Wilbur : Fundy

you was shock and did not know he was there with Tallulah of course you panic and did not know what to do and Wilbur just stand there he thought his never get to see his son again