Paige wasnt happy that she met her real dad for first time. Because her dad never raised her as family. Paige do have right to emotion. Sam is retired whitelighter and homeless. Paige have to save her dad from evil. It is really hard for Paige to accept that her real parents cant raise her cuz of Elders. Elders can take Paige as baby away permenant. Paige understood. In the ending of this episode, Paige finally accepted Sam as her real father and Sam loves Paige as long lost daughter. It is so cool to reveal by Elders and Leo cuz they sent Paige to meet a new charge.