Did I do something wrong?

Last night my boyfriend asked me to write out a list of everything that we will need for the house hold. (Mind you we have a 3 year old in the house). I try to keep a lot of fresh fruits and veggies in the house for her. I this morning wrote out the list and left it on the fridge for him. Got a nasty message being told I was selfish that the list was too long that 35 items was to much and that I was asking for too much. Am I really in the wrong for asking him to pick up groceries? Like really? Why would he act that way? When the week before it was ok for me to pick up all those items and spend my own money and it not be a problem?
Did I do something wrong?
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