My partners mad because my work makes me stay late

I don’t even know what to title this. Basically I work at fast food, and I usually get out anywhere from 15-30 minutes after I’m supposed to be off the clock. My boyfriend (23) expresses how he wants me home when I say I’m gonna be home, and that it makes him upset when I’m not. I apologize and try to explain that it’s hard for me to get out sometimes when transition times are hectic, and when I’m closing I don’t get out exactly when the store closes, I get out once everything’s done. That’s how it works. But he tells me that’s not how it works and they’re taking advantage of me. He says next time that happens I should say that I am off at the time you scheduled me and i need to leave. I literally CANNOT do that. I’ll get in trouble. I asked whyre you guilt tripping me for something that is not my fault and not really in my control. He said back that he doesn’t get why I get this bitchy defensive attitude ONLY with him when he brings up something but with no one else in my life. I tried to defend myself again and he said shhh I don’t wanna argue so I just said okay and turned away. But after a while he got up and said it’s crazy how when someone brings something up about you, you make yourself the victim. I just responded with “you’re mean” and he took his pillow and went into the other room. It’s literally 6 pm….

He recently got a job offer where he might not be home besides the weekends and I told him I would miss him a lot. He told me that’s how he feels when I’m home late. But I would literally never make him feel bad for taking that type of job or trying to guilt trip him into coming home early.

I really don’t know what to do abt this