First of all,thank you for considering it "interesting" ¡
Yes,it's an unspoken love because everything was told with gestures,glances and the so called body language.Being as they were two inarticulate country boys,saying out loud something that scared them deeply-specially Ennis-would have been almost impossible.Ennis mainly preferred to deny his feelings than admitting them,as you say,and less still declaring them to his desire's object;to admit loving a man and not only !@#$ a man would have been another step in his way to "queerness"...
Wasted
wasted ..so tru but so

!
these are some of the words collected from various posts - painful, desparate, wasted, tragic, true, destructive , deep, doomed ....... and many more and each word fits so well, this just shows how unfathomable the relationship were - impossible to express in a lifetime of words let alone one word
(makes me think that all the magic would have vanished had ennis and jack been over articulate .. they have left the viewers do all the articulations)