Should I quit my job?

I started a job last month and I told them I can work any day any time during that month. This month they scheduled me on a Sunday early in the morning. Number one I didn’t know I was working; the schedule one of the managers sent me literally cuts off. Number two I had church and I have to take care of my bed ridden grandma early in the morning. I’ve never ever been placed on the schedule for early in the morning so I was a bit confused. I told one of the managers that yes, I can help hang up clothes for 3 hours but I would have to leave at 1:00 and take care of my bed ridden grandma. She said okay, and then she pulled me over to the side saying im not making a good first impression considering I was out last week because I had to go to the hospital for my back. I explained to her that I gave my excuse from my doctor to the other manager last week and he told me I needed rest for 2 days. She proceeds to say the situation is fishy and other bullshit when I literally had an excuse. I almost cried. Im actually really close with the owner him and I became pretty good friends he took me and two other co-workers out for pizza Friday and he paid. He did reprimand that manager previously because she left the key to the register out and she miscounted the money. So I thought maybe perhaps she felt some way because I was close to him. I know girls that work there and they haven’t showed up in a month or two and I’m there busting my ass every night.

Should I quit my job?
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