I'm convinced Mrs. S wants what's best for Kira, I just hope it doesn't turn into an ultimatum of Mrs. S and Sarah getting into a brutal fight over it. I want to know Paul's motives but since Cal entered the scene I think I can wait haha, he's a cool dude and a great dad, him and Kira together are just precious. She was brave having that marrow thingy done to help save her auntie <3 but yeah as long as Cosima is happy with her, I guess it's for the best, they do share some development and around the same intelligence so it's not like it was random.