Ladies, Please forgive me for breaking into this conversation, but I think the reason that Steve and Rachel's chemistry was noticeable in Hei Hei (ep 10) is because Alex and Claire knew each other in Australia. There was a link to an article about their friendship on one of the H50 fb websites a while back. In it, Claire said they met when she was in her late teens, and Alex sort of took on the role of big brother. I think what we saw on screen was a bit of their friendship.

Tarnished