Why does my boyfriend expects me to cook for him during my working hours?

i work from home and he expects me to act like I’m not working and to be available to cook him a meal... I try to sometimes on lunch but sometimes I’m tired from dealing with the baby. I just hate wen he randomly ask me and he nos I no longer have breaks left. Like damn I’m not a slave. I tried to talk him about it and he just dismissed me.
Why does my boyfriend expects me to cook for him during my working hours?
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