I’m crying. I think that works well, at least written out.
A couple potential alternates:
“Leia sensed the conflict within you.”
“Leia sensed your struggle with the darkness inside you.”
Something to sound less like she is facing an inevitable pull toward darkness which she will never master. I do wonder, though, why this should be news to Rey, given that Luke also sensed her pull to the darkness in TLJ.