Yes!
To me Jack I swear means that he now loves MUCH more Jack, and that he will KEEP ON loving him.
Ennis is a man of HIS WORD! He is stating that he will continue to love JACK, as well as to love OTHERS, like to love his daughter by going to her wedding!! Of course, he will love now in many wondrous ways to better HIMSELF and the WORLD, especially the GAY world!!
Any comments on this?
Hugs!!