Sharon doesn't know what she's supposed to think. This alien has taken over her cousins body - she's seen the devastation on Jared's face when he looks at her and she hates it because she's seen how Jamie adores him. This thing could be the downfall of them all - it could lead the Seekers straight to where they're hiding and get them all killed.
But Doc seems to like, really like her, and so does Uncle Jeb and Jamie and Ian.
To be honest, she doesn't get why.
Sometimes she thinks she'd like to.
But she can't look at her in this body.