Yes, many of us here do believe that it wasn't the money at all that was the issue.
The glance Jack gave Ennis after he had packed is one of the most beautiful ones in this movie...
Yes,I agree completely.But I'd add one of Jack's most touching glances,IMO; the one he gives Ennis while they're speaking just before saying goodbye to each other.This glance while he's saying that maybe he'll come back to BBM next summer is a way of saying "please,don't go,give me some hope...",a desesperate supplication and a way of proving if Ennis feels the same for him.
And the little and shy glances that Ennis gives him-never directly,never openly...-is a protection against its strenght,to avoid falling into his blue deepness and never go away.Indeed,a good visual work on the part of Heath and Jake¡.