So she does know anything Siffleur knows, makes things a little more complicated for when she returns.

I crossed the river to ensure my friend and his mother stayed warm in this cold memory.

Valdis did not expect to find an insane, twisted soul existing alongside Siffleur and she's certainly not kissing Siffleur in order to remove it without taking his soul. Bad enough she may have to kiss Crichton.

Does he know you are here?