[One he doesn't want to just leave behind, just like he didn't want to give up on those hours with Lila. He was willing to give that a try and the only reason why he didn't was because Morgan adviced him not to — and this, this is so much more. Three weeks is nothing, but your life can change in a much smaller amount of time than that.
He pauses. Contemplates whether he should even say this when he can't back it up with facts and figures, but she's already aware that he can't promise anything. It's not in his power to do so, but that doesn't mean he can't feel it. Want it. Do everything he can to make it happen.]
One way or the other... I'm not going to leave you behind.