The last time I met my fiance’s friend for lunch, she had mentioned to my fiance that she would have a joint account and then separate accounts for her fiance and herself. She said she still wanted to maintain her independence. At law school, my Equity & Trusts professor once recounted how she told her husband ‘Honey, what is yours is mine but whats mine is mine.’ 
That made me wonder how I should structure our household’s finance. Presently, I live in his flat and he pays the mortgage and most …