[The first two sound perfect. She's not sure she can believe the third one. She doesn't think he's lying to her, but maybe to himself a little.]
I do love you. [Maybe that only makes things more confusing right now, but he's been there for her during some of her darkest times. He's been her best friend when Reid stepped away from that role. He's made her happy and been a companion and if someone tried to hurt him she'd want to use the claws. So, she really doesn't want to be the one hurting him.]