Confirmed, (although there may be state law protections, depending on the state). There are similar issues with attorney, accountant, priest, psychotherapist, etc.[1]

Spousal privilege is US federal common law and is complicated because many states have laws that either support or override the federal version.[2]

[1] https://en.wikipedia.org/wiki/Privilege_%28evidence%29 [2] https://en.wikipedia.org/wiki/Spousal_privilege#Communicatio...