As far as Tyr goes, wouldn't having the person who raised you killed, then going off into the black ops cause massive trauma? And maybe he's just repressing like hell?
As for Gabe....I don't really know. Mostly because there's not a lot to work with. Oh! You said that he broke down in front of Serrano, right? Maybe someone found out about that (either through eavesdropping or other nefarious deeds) and was like "PTSD! He needs a vacation!" or something. (I don't know, I'm tired and just woke up. ;-;)
On a side note....wouldn't it be better to say "Territorial" instead of "Territoriality"? I mean, it sounds good, don't get me wrong, but I was reading this last night before I went to bed, and I couldn't pronounce it right. ^^;