I too get annoyed by spurious posting in AIBU, but think this blog.moneysavingexpert.com/2019/06/martin-lewis--financial-abuse--joint-accounts-and-managing-money/?utm_source=MSE_Newsletter&utm_medium=email&utm_term=25-Jun-19-50569350-2253&utm_campaign=nt-bignote-one&utm_content=4 needs as wide an audience as possible. Read this if you think something weird is going on in your relationship re money. It’s called Martin Lewis: Financial abuse, joint accounts and managing money within relationships.