I'm with andreth on this one, I think. And since I just finished reading the rest of your Time Agent stuff, this has an even bigger punch.

All your details, every exchange, seems so well-chosen, so balanced; all the humor of their earlier escapades is just under the surface, but all the bitterness too. You let all of that seep through between the lines. We really believe that these two have shared an irreplaceable history in addition to their off-the-charts chemistry, and that the bond is both impossible and very real. John will probably always understand some things about Jack better than almost anyone, and even their bluster always has a ring of truth. (What John says after getting Jack off: Oh. My. God.)

It blows me away that you get that across so economically.