Is regina and crown prince also gunna be a thing????

I think she's realising how similar the Crown Prince looks to her sister's husband. Like, he might be the Crown Prince's illegitimate son

You maybe right. From what I read in the raw, when the nanny in her delirious state, she mistake tatiana for Kynell's mom sheention the father and his name is the crown prince's name. And then the next think is his picture

Exactly we have the same thought...she said before that she seemed have seen his face somewhere...that probably why she looks interested