[It isn't difficult to guess how hard this might be for Mello to deal with, and that it'll take time, and that's okay. He just wants to be sure Mello knows that, too.]

You're welcome, and don't hesitate to contact me if you'd like to speak again in the future. But I suggest taking some time to really think about everything, and give yourself a chance to mentally go over it all. Don't rush yourself, and ultimately just focus on looking at everything once again now that you have some more information.

[And in the end, he doesn't want Mello to change his view on everything just because of Lance telling him what he sees; it's more important for Mello to come to a conclusion that's truly his own, even if Lance's input might help--hopefully, anyway--in that.

And since the meeting is clearly done, he moves to get up from his chair; Mello probably wants some time alone, now.]