The breakup in the bookshop in s2 was staged, made to look like a breakup to outsiders while it was actually them confirming their plan to take down HH.
But that's not the only breakup we saw. Were the other ones real, or also staged?
In season one we saw the breakup in St James Park, after they were caught in Edinburgh. Aziraphale is the one who leaves the park first and initiated the breakup in the park. We also see a "breakup" in the 1960s, the too fast scene.
(1) Park, 1862. Crowley initiates, neither protests/both add fuel to the flames, Az leaves. 1941 Crowley returns. The title card is underwater, as in there's more going on than what's on the surface, what's superficially apparent. It's not clear. Hard to fathom.
(2) 1960s. Az initiates, both reaffirm they want to get together, Az leaves.
(3) We also saw the bandstand breakup. Az initiates, Crowley protests, Crowley leaves. Az initiates contact, gets pulled up to heaven. Crowley mourns, because he thinks it's real. Az returns.
That's two in the past, one in the present. Each time they take turns. We don't see the "I lost my best friend", we don't see the "you can't leave", except at the bandstand and subsequent yanking by corporate. We now know the park was after the 1862 hellhole.
Conclusion: I think everything but the bandstand was faked. Two fakes, one real. They were threatened, so they "broke up" publicly to take the heat off. 1960s was the tentative "maybe it's safe now, but we just can't know, it's not a risk I want to take". An assessment of whether it's safe to be publicly together again, and the answer was no.
Further, I think each event here isn't solely fake or real.
(1) Park, that was a real fight, but a fake breakup;
(2) 1960s was a fake fight and fake breakup;
(3) the bandstand was a real fight and a real breakup.
There's ambiguity about what's going on, which is another theme that comes up constantly: who actually knows what's going on? what's the answers? God plays games with the universe, what's written isn't straightforward, god doesn't answer and what she does say isn't an answer.
In season two we saw the breakup in the bookshop, after Azi introduced Jim. Crowley initiated the breakup and he's the one who leaves. In the past we saw Aziraphale lose Crowley to hell for real. At the end, Crowley loses Aziraphale to heaven, not via death but might as well be. He isn't broken up about it like after the bookshop fire. One in the past, two in the present.
(1) Az's backroom. Crowley initiates, Az protests and stays, Crowley leaves. Real fight; not a true breakup, because it wasn't a breakup, it was Crowley not wanting to participate in this particular thing. He still left though, so for purposes here that's a real breakup. This is the ambiguity again: looks like breakup, and he is leaving him high and dry, but it's that particular action/request instead of them breaking up as a whole.
(2) 1827. Crowley initiates, Crowley gets yanked by corporate. Real fight over morality, real breakup.
(3) Metatron hovering. Public breakup, that looks a whole lot like their real breakups. Except they're not stressed out like they were after the real breakups. Fake fight, fake breakup.
So that's two real breakups and one fake one, the opposite of s1. It's an AAB pattern: fake/fake/real for s1, real/real/fake for s2.
Three fake breakups. Three real breakups. In the pattern of AAB, both seasons.
So in s3, we'll see the same thing, except it'll be getting together or first times. Because that's what goes hand in hand with "breaking up". Since the previous seasons did fake and real, I think s3 will be about ambiguity--were they really together, or not? That fits the previous seasons too: were those breakups real or fake? There were elements of both in each one, but I think it's the overall goal that matters: for example, the fight over the holy water was real, but them breaking up over it was not. Real fight, fake breakup.
I think it'll be two false starts, or two times they were assumed to be together, and then the real time they got together: AAB.
I think the AAB pattern is the pattern from the music playlists? I haven't heard that anyone figure out what it was. Perhaps this is it. There's many more patterns in the way the show goes too, with the same AAB/set of three. Since there's three seasons, the seasons themselves might follow the pattern. So far we've had two seasons where things aren't fine, so maybe the last is when everything is finally okay.
AAB is a common song form, called the 12 Bar Blues Song Form: "A" refers to the first and second four-bar verse, and "B" is the third four-bar verse. In a 12-bar blues, the first and second lines are repeated, and the third line is a response to them—often with a twist.
Unlike AAA or AABA song forms, which describe the overall structure of the song, AAB describes the structure of an individual verse. AAB is always used as a compound form.
12 bar relates to the number of bars, or measures, in this song form. Almost all Blues music is written in a 4/4 time signature, i.e. there are four beats in every measure or bar with each quarter note (crotchet) being equal to one beat. (source)
What's the four beats within each season? And within each "A"/"B"?