I do agree TheDarkOne that there is something about the theory that Bae is the father that just rings true. Because it is so neat and adds the connection. And then makes Henry the one who can sort of bring these characters together, It is like the black and white of it all. Like the good guys daughter and the bad guys son. The Romeo and Juliet of it all. That sort of very normal plot form going on there. I think for me though i would rather Bae know who Emma is somehow, maybe he is in contact with the Blue Fairy, i have no idea, but just have him meeting Emma not be an accident. The falling in love or whatever happened between them could be something that was unexpected, but maybe have them meeting be something that happened on purpose. And maybe if the father is Bae and he doesn’t know Emma, that somehow someone else could know and contrived for them to meet. I think that when it comes down to it i don’t quite like that their meeting would just be completely accidental.
And maybe they could say Emma caused it. Like there was sort of the suggestion that when Emma wished on the blue star candle that she didn’t have to be alone on her birthday that somehow that could have caused Henry to come to her. Maybe the magic of that moment caused the lead up. I would be fine with this. I am not sure the writers are that thoughtful though.
And i do think that it is likely they will imply that Henry’s father is the one who was meant to be just because this show has done so much about their being one love for each person and that’s it. That also seems contrived, but it is a show about fairy tales where that is a very normal storyline.