Yeah. It was.

[He stares sullenly at a spot just to Lust's left, remembering the things he'd said. Remembering how real it had felt.]

I'm sorry. For afterwards. I just didn't know what to say, and seeing that you weren't who I thought you were... well, I guess it was the same for you, huh?

[They'd both pretty much just fled, but now Boone can't help but think it wasn't the best way to go about things.]