Glad you enjoyed it!!
yeah BUT SOME PEOPLE DONT LIKE SEASON 2 AND THEYRE SAYING THAT AT THE END AZIRAPHALE ACTED OOC
JUST BECAUSE YOUR FAV DOES SOMETHING YOU DONT LIKE DOESNT MAKE IT OOC.
The Metatron clearly manipulated Aziraphale using sweet talk, Crowley as a bargaining chip and the confusion Aziraphale had after the kiss to his advantage. And the way Aziraphale acts is actually really in character, you can tell (during the season b4 the finale) that somewhere in there he still believes "heaven good hell bad" he still has those beliefs so when they're resurfaced by a master manipulator obviously he's gonna react the way he did and retreat into his old ways of thinking.
The good omens heaven hierarchy is already explained by Neil Gaiman on tumblr as a reply to an ask. All the asks have been compiled in a page, you can find it in the pinned post on Neil's tumblr.
One question that was never answered (as far as I know) that I want an answer to is, if Aziraphale can feel the presence of love, how come he never felt Crowley's love for him. Either he did feel it, and he always knew Crowley loved him, or he couldn't sense it for the same reason Anathema couldn't see Adam's aura (simply too beeg), but that question has never been answered and I GOTTA KNOWWWWW
Oh, and I forgor there's also a third theory that Aziraphale has been exposed to Crowley's love for so long it's just become a natural presence for him and he never really noticed it.