Tryingtolearn---getting yelled at for the brand of peanut butter sounds like verbal and emotional abuse. You don't deserve this and it is wrong for him to do this.
You don't have to live like this.
I hear that you feel very depressed and discouraged.....like SparkleKitty said....please summon your energy and courage to reach out for help. There IS help for you and you are not alone!
Going to an alanon meeting would be a start. Getting a counselor to talk to would be another start. Calling a domestic violence center and talking to a volunteer over the phone is an excellent way to find the various resources and support in order to leave if you would like that. They are wonderfully understanding and gentle--without judgement.
No obligation--just anonymous help.
Do reach out your hand....
You can get through this, just like so m any of us before you who have walked in your shoes....
dandylion