Remain calm

I HAVE to remain calm.  I know I can not let them get under my skin and react.  It's so hard when I would never knowingly do an unkind act--- for them to say I was only after his money and mistreated him.  Gee, If I was after his money, I"m actually very stupid.  I never asked for a dime.  I spent my money (that I earned) on food, clothes for both of us, my medical bills, his dogs food, and things for the house--plus worked a job that had benefits so we could have health insurance.  Now he's saying I "ONLY worked at Walmart".    He's saying we bought a new car to "try to save the marriage".  He insisted on us trading  because he felt it was getting too many miles on it.  I did NOT want to trade.Don't fight with pigs--you just get dirty and they have a good time.