What should I do about my job should I stay or go?

I just recently started working at the sonic in my small town here in Texas. I am 17 and started working there again on February 7th of this year. I also worked there when they re-opened a new Sonic a couple of years ago. I recently came down with a bad Sinus infection and had a doctors note saying no school or work for a day. Well My manager got mad about it and cut my hours. Then a week later I still had not gotten any better (I had worked btwn these times) and I developed Swine Flu. I was very sick and my doc told me no school or work from Wednesday to monday so when my mom went to take my manager the note he went off on her saying how unreliable I am and that he was going to prob fire me and shut the door in her face like a little kid. So when I got better I asked him about this and he said it never happened and that my mom was a liar. (She's not) He also said he had no problem and didn't know why I thought this but then he made our schedule and only scheduled me for 2 hours today and that's it until our new schedule is made Sunday but I also haven't worked since last Wed. So My question is what should I do? Should I report this or quit? Because my Fiance makes good money at a grain mill here in my town it's 10.50/hr plus health and dental so do you think I should find another job and just be jobless for a while?