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Oh boy let me talk about how clearly Aziraphale mirrors a victim of abuse. Warning for spoilers obviously.
Throughout season 1 and 2, we are shown clear examples of Aziraphale being ridiculed and abused by the Archangels. They tore down Aziraphale's confidence and made him believe he was "soft" and "useless". The things they said to Aziraphale sound a lot like the comments Nina received by her abusive partner Lindsay.
And, like Nina, he needs to realize how to heal from that trauma. Because unlike Nina, Aziraphale once again fell for abusive and manipulative tactics, namely Metatron's love bombing.
Metatron came and told him that this time, things will be different because Aziraphale will be the one in charge, subsequently validating Aziraphale's belief that the problem isn't Heaven and Hell as institutions, it's the people running those institutions that are the real issue. This is a very clever way to manipulate Aziraphale and it's also very realistic, as victim's of abuse often go back to their abuser. Why?
Abusers manipulate their victims into thinking that 1. they NEED to stay because they would be nothing without their abuser and 2. that this time it will be different and that they love them (see. Metatron offering that Aziraphale run Heaven and finally saying what Aziraphale's always wanted to hear: "You did the right thing"), also known as love bombing. It's what makes leaving a destructive relationship so hard, because deep down victims cling onto the hope that things will get better eventually.
Abusers also destroy their victim's other relationship, leaving them without a support network and no one to turn to once the abuse inevitably starts again. Metatron did just that, he KNEW Crowley would be upset, and as soon as he was able to he belittled Crowley ("He always wanted to do things his own way" and "He asked too many questions"), subtly discouraging Aziraphale from doing the same. By doing what he did he effectively cut off Aziraphale from the one person who could change his mind. It also means he has an easier time getting Aziraphale to do his bidding, because now, Aziraphale feels like he has nowhere to go to if he wants to leave Heaven.
Metatron, as an extension of Heaven, is the abuser, and Aziraphale is the victim. Crowley already knows Heaven and Hell are toxic, but Aziraphale hasn't realized that yet. I believe that season 3 (pray we get one), will focus heavily on how that abuse and manipulation will continue until Aziraphale learns to stand up for himself, and finally leave the relationship which has hurt him for so long.