Youâre actually incorrect about Ritsu and abandonment. As far as Iâm concerned at least. Originally it really was one time thing somewhere prior to the war. Ritsu talks about it like it was one time thing, that betrayal. And there was cd drama from 2016 that looks like it is their first time or maybe shortly after that betrayal happened where Rei and Ritsu meet after that âbetrayalâ. Rei is quite surprised by Ritsuâs reaction there. This probably wouldnât have happened if Ritsu already expressed his dislike of him.
But courtesy to enstars favourite trick these days, namely retcons, lookback very clearly set this one time thing years earlier, so now we have years upon years long grudge against Rei that Ritsu holds that got progressively worse as time went on.
There are honestly other things Iâm pretty sure weâre fundamentally changed by lookback. Like I would argue nature of âpromiseâ and thus âbetrayalâ changed as well. But thatâs a story for another day.
i believe that's what i stated in my answer; that it was generally a 1-time thing that occurred the year before the war.
but, ritsu also calls out rei multiple times for "abandoning" him in JANUS, that that rei "doesn't care" about him, and that he "hates" him, so i felt it was something worth mentioning...?
it definitely was more baby-talk, and was nothing like a decision made. ritsu still continued to cling to rei afterwards, and it appears that reis big "abandoning" of ritsu which made him put up his walls and decide for good that he doesn't need rei anyway, etc. i always interpreted this fundamental change to be what really shocked rei, it's no longer the fussy "i hate you oniichan i dont care about you anymore" that filled their relationship as children.
i do find it relevant to the conversation that rei didn't just up and leave ritsu out of nowhere!