I guess she wanted a lavish ceremony & that 大过礼 cannot be too little, not Instagram-worth
She might have put up her own money to ensure all are fairy-tales moment, until their relationship turn sour
Those money she put up, suddenly become a 'loan' to ex-hubby .... Every MAN knows, Wedding are 100% Woman's glamour show
A Man is happy enough to go ROM, sign a paper & get it over with. Furthermore no sane Man will spend so much for a used-abalone