I... was just thinking about how nice all this is. I mean you... understand me better than anyone else. I'm not as worried about screwing this up as I was about... all my other relationships.

[..."as worried" being the key part here. Because let's face it, if something causes you to leave, it'll be Isaac's fault.]

[That's not exactly a lie, anyway. He doesn't want to get into the discussion of just why Kimblee agreed to this. He's fairly sure he'd rather not know.]