This Sharing Spaces universe is refreshingly authentic; their dialogue sounds like what you would expect to hear if you were eavesdropping. It's both intimate and prickly, which just rings true for me. As others have said, you write the least fluffy fluff I've ever seen.

By the way forgive me for pointing out a minor typo, because you're always so accurate: "Jack leaned closer, expression baguely amused"