It's strange that you're writing stuff about this ep because I just rewatched it the other day.

You really capture Brennan's confusion over her decision.

ED was great in this ep - not just in the big scenes but in the little stuff, too. The way she got on the boat without Sully's help, the way she stepped back from Sully when he asked for a hug (and how she cathces herself doing it), the exhumation scene, the quick look towards Booth when Sully was saying goodbye. And this one - which if you aren't paying attention - is just a throwaway scene.
Although my fave is how fast she got over Sully when Booth was there! ;-)