I agree with pretty much everything you said; only, I'm totally convinced that Booth's absence from the lab is deliberate and has nothing to do with DB's likes or dislikes. Brennan is back in his space by now, but he hasn't returned to hers yet, which is a nice symbol for their current relationship.

what goes on between them is still theirs.

*g* I just posted my own review and ended it with those very same words - I guess it was a message the makers wanted to get across here, and they did it beautifully.