oh this is fantastic!
I love the mentions of the mountains and the 'was once trendy' housing development. It really helped to set the scene.
Oh! and the dialogue is superb, you've really captured their voices, especially Malachy's

"I did not want to know some tart had accessed your arse," Malachy protested.

a certain moment of the film came across very clearly there. *grins*

The way you've moved the story on and yet maintained the very essence of their relationship is very well done. The sense of angst and pathos and merged very well with hope and possibilities.

Oh! and

'… mate's rates, I promise."

is a fantastic ending. It created an echo of the Luke of old, and his dad....'mate's rates'...and yet allowed the story to move on. It's like the story has come full circle.