Moving out of the BR is a hard day. Rings off is an excruciating day. Having R talks when you dont know what is going on is a ridiculously painful day.
Once you have the tools though, you can bear these days.
Read all the MLC sources. Really try to understand the world from their viewpoint, not from your own. It will help enormously to see why some of their actions and words are so discordant.
My W was the most rational person in the world before this. Now she cant stick to one train of thought for more than a few minutes and lives in a fog.
They are suffering. They just cannot cope with how they are feeling.
Sometimes it's hard to see that because the things they do hurt us. But beginning to understand can help us (not them) get through it - regardless of the result.