It might not work in your situation but when my wife started to get very angry about the finances (that she was owed more, that i wasnt paying my fair share etc., that i was spending too much) I said i would be happy to sit down with all the bank statements for both of us and we could work out a solution based on actual figures
She backed down immediately and hasnt mentioned finances since.
I dont know if its only a UK thing but our politicians regularly say 'Sunlight is the best disinfectant'
Both mid 30s, 2 young kids BD 7sep14 XW moved on long ago, now living with OM1 D paperwork in progress