There’s 10 pictures and only 2 where his hand is on her shoulder. Why is everyone changing their mind only for that?

I have no idea!! I’ve seen the other pics and I don’t get how everyone comes to the conclusion that they’re together. Those pics look quite innocent and meaningless. So I guess it’s the number of them that keep growing and the fact that he’s seen with her a lot in Vancouver. But I still believe there’s another explanation…