Saysumthinfunnymike
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Actually you are making him simple when you say "the only thing he cares about is going back to Cersei, he cares about her more than anything else." You're stripping away his nuance by saying that is who he is.
No, I said that's what he cares about most. I didn't say he doesn't have feelings for others. He obviously does. In that moment he wants to get back to Cersei. He knows that she has maybe one night left on the planet.