Coming back to the colours topic,I wonder if seeing Ennis wearing lighter colours,specially blue,means a way to have Jack with him.I mean,if it's a way to remember him,and mainly still,TO BE Jack when he's away.We all know that Ennis is little keen on fantasies and almost unfeasible projects- a Jack's characteristic-and that this is reflected in his clothings,always in clear and related with Earth colours.Well then,if Ennis wears a Jack's colour-like blue-expressing a lively,dreamer,rebel way of being,we can find that Ennis only allow himself some kind of fantasies-it´s to say,an approach to Jack's personality-when he's alone,when nobody sees him or listen to him,neither Jack,of course.In these moments,he can allow himself to dream in the "sweet life together",and also wishing it and thinking Jack was right in defying society's rules.But coming back to reality-in his case,crashing against reality-he must behave himself according to these rules and keep on being "Ennis,the stubborn realistic".It's a kind of adopting the lover's way of being because,at the end,both of them was different sides of the same coin.I don't know, as always,if I'm explaining myself well and this makes sense...