She notices that struggle and it makes a big chunk of her actually not want to go back. Going through the bad is just as important as going through the good, but there's also something to be said for ignorance being bliss. She's not sure which she's prescribing to, but his face says enough to make her heart hurt.
"Good. Between everything that's happened since I met him he needs something happy in his life." Being on Team Arrow isn't really any fun at all. It's so much pain and worry and heartache, but she and Diggle keep going because it's the right thing to do ... and because Oliver needs them.
She's still holding the sandwich, kind of looking down at it. "I brought him hot coco once. Everyone was looking after their families because ..." Slade Wilson. "Bad things. Diggle took it on himself to sit in a cold car just to make sure I was safe." A small smile turned up at the corners of her mouth. "We've been close ever since that night. It's good to know he's happy." Someone has to have a happy ending out of Team Arrow.