I notice he seemed to look more unhappy about the missed blue at the end of frame 20 than the long pots he's being missing.
This is why its more interesting when he's playing someone he doesn't like. You get the niggle that you can relate to past events. For example the way he looked at the red during the 3rd double could relate to Carters attack on Judd where he accused him of not apologising for flukes.