I apparently read and voted on this before? I don't recall that, but either way my vote is unchanged on a reread.
I admit I'm picky about dialogue. It's one of my favorite things to write as an author, and I recognize that it is also one of the hardest things to write. Dialogue can make or break a piece, and it definitely breaks this piece. The dialogue just is not particularly convincing or compelling. It lacks a natural flow, no one really feels like a real person. Everything feels like it's being said in service of a plot or to unsubtly establish certain character traits. A good example of this is "doesn't matter to a worthless person like me."
That just doesn't sound like a real person talking. It sounds like something being said entirely to unsubtly tell the reader something about this character's personality. It just doesn't work.
Overall -1. This needs more development and critique passes still.