What to think about finding a list of things my wife wrote of things she does not like,about me?

She is a good women and I have askes her many times if she has anything she does not like about me,ect but always says everythinfg is fine.But I found a list in her purse while looking for chewing gum,it had bad attitude,dont care what she thinks,no money,no job just got laid off recent!!rude.rough which is a crock anything we do is agreed on not forced.cussing, ect.--Anyway I was shocked and hurt.I am not a bad husbandI go way out of my way to keep her happy,especially about her distrust problem,She gets mad if I am at all friendly to any women at grocery store ect.She always thinks I am up to somethin,I have never cheated but I think she thinks the worst of me.She said the note was written while on a lunch break just to vent nothing more,she said she was trying to figure why I make her mad alot lately.I walk on eggshells already to be sure I dont make her feel bad.By the way a couple of jobs I have applied for she got upset because I may have to work nights so what U think?