Why do people Piss and Moan?

My Wife has a "strong" personality. Every once in a while I have to remind her I'm her Husband and not her child.That being said she doesn't give me much crap about my car stuff even tho she is" a car is just transportation" type of person.You need to set her down and discuss in a calm manner the feelings you wrote here.Good luck..... a good life partner is important to our over all health.