#but he'll never forgive sabine for putting them in this position in the first place

[antianakin]

I've decided that Rex isn't going to forgive Sabine within a timeline where the Ahsoka show happened. Like the MOMENT he hears that Thrawn is back and they have to fight in yet another war all over again all because Sabine was stupid and selfish, that's it for him. He's heard about Anakin at this point, he's gotten enough information to know that Anakin also made a really stupid, selfish choice and it led to the destruction of Rex's entire world. The Jedi gone, the clones enslaved, the Republic crushed. He knows where this kind of selfishness leads now and he's unwilling to stick around just hoping Sabine turns herself around faster than Anakin did. He's been betrayed enough in his life now to know what he's willing to forgive and what he isn't. And Sabine forcing them all to fix a problem they already had to lose people to fix the first time because she got a little lonely and refused to ask anybody for help isn't something he's willing to forgive.