Why does he care that I need to work?

So I have military disability coming in each month along with money from school. Im not working just focusing on college. My boyfriend seems to only care that work and he feels I don't make a lot even though it's enough to pay my bills. We don't live together he stays with his dad and he feels the need to brag how much I make. I make $2400 a month, he said I should make at least 30k a year since he makes $54k. I'm like I didn't think guys cared about how much their girlfriends made. I told him I'm not working, I'm trying to get a obtain my master's and complete my degree, I'll worry about work afterwards.

Why does he care that I need to work?
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