

Sorry mate, but it sounds like you’re absolutely in the wrong and need to work on your anger issues instead of waving your hand at people for not understanding you.
I have a reason for my actions, people just choose to ignore those reasons and misinterpret me.
People acknowledge your reasons but it’s no excuse for shouting or lashing out. You can try anger management or trying to keep your voice lower when you’re mad, or at least apologizing when getting genuinely mad at someone.
It means both instances will see old posts from before one of them defederated.
Now that A is de-federated from B, they both won’t see new posts or comments from eachother. In the case of fedia and ani.social, you won’t get any new posts from any of their communities or users. If you post on anime@ani.social from fedia, nobody will see that post outside of fedia users, because ani.social isn’t seeing it and passing it around to the rest of the fediverse.
You hav basically the right idea, everything stops syncing when one defederates.