[While he's torn between wanting to help by being a good listener and not wanting to intrude on something personal. So he just elaborates because talking is better than awkward silence.] He vanished once at home for a few months, but I know it was a lot longer for him. I've never really gotten the full story on everything that happened while he was gone but he came back a bit different. Some of the changes were good, don't misunderstand me, but it was hard, knowing he had experienced things that made him want to change our relationship but not understanding what those experiences were.