What a wonderful day.
Let her see your pride, but not your sadness. Her hug says she didn't know, so you succeeded.
Kids are excited to be with other kids. I know you both will encourage her to explore and enjoy that excitement, and share it with her, as well as your pride in her, when you reunite.
Best wishes. :)
She is already so independent which is great but, she isn't even two yet. By 4 she will have her own apartment and an executive position ;)