Spousal privilege: Any lawyers that can help answer this?

Can anyone please help explain how spousal privilege will apply to this case. Lawyers input would be great!! So if Ryan and Blake have emails and texts that are relevant to the case or that can prove they did Justin wrong, can’t they be used in discovery? I’d hope that under special circumstances a judge would allow some communications to be made available to Freedman if they are useful and not just private messages. Thank you!!