Like divorce is new.
The Victorian emphasis on female frigidity (aside from being an excuse to outsource orgasms to competent machines) was actually more of an over-reaction to the common claim of male impotence.
Female frigidity really doesn’t mean much in a society that doesn’t value the female orgasm, Victorian men had a love/hate relationship with anything that connected their wife to their faking-it mistress. At least, it isn’t necessary for conception. Historically, it’s meaningless.
This has yet to appear in a Game of Thrones episode but it should.