But when you've lost someone close to you, can can go a bit.. numb. I'm a cuddle monster but hated showing signs of affection when I lost close relatives. You can go a bit "in" on yourself so it might be that.
Also I don't think she's someone who plays up for the camera... maybe we just aren't used to seeing a "normal" relationship on screen!
I'm also talking about before Andrews death.. And "normal" couples show affection on tv