He doesn't have a heart - just fat in the shape of a couple of aortas and atriums.
More seriously, I'd say he doesn't think of himself as having a daughter unless he can use it as a weapon, whether for a pathetic Twitter flap or a passive-aggressive dedication in a book. He doesn't give a shit about Annabelle unless he thinks it makes him look good, and I bet it didn't occur to him to think of her in that tweet until he read it either here or at OnA.
Pat's legally not the father, and as such a great trans ally he will tell you that a couple of official documents is the same as literally rewriting your biology. He's transitioned to not being even a biological father, and society has to reinforce that or they are bigots, child.