It definitely made me go aww. But in an ow-tinged, lovely way. It seemed really real, or something. And so many spot-on lines, like:

But at three in the morning they could be close and intense and kind of obsessed with each other, lying nose to nose and talking through the night.

God, I love that whole image an unhealthy amount. Also:

Don rubbed his face tiredly. "Charlie, we must have spent thirty years learning how not to be brothers."

Oh, boys. *sniff* Oh, and Charlie and his math metaphor, as well.

Really, really perfect.