Is it possible that she noticed your scar? Maybe she did and felt that she could open up to you without the fear of judgement. I don't know it's just a thought. Maybe you could try talking to her and telling her that you are there for her
as long as it isn't too triggering for you.
BTW I like the username
It's good to see another fan of NCIS. Can't wait for NCIS LA to start!