Frustrated Again...

Again tonight someone comes in complaining to me. Like I done something wrong when it had NOTHING to do with me. This time it was someone different. Although the guy from the other night came in also. I guess he talked to my manager and told her that all I do is call the cops on everyone. The ONLY time I've called Jacob is when he came in harassing and threatening me and when we have had drive off on gas. We have to report drive offs. My manager was not mad at me and she took up for me with him. She even joked that she was going to hang a sign up in the store that read "If you have a complaint Amanda does not care" lol. Still I'm upset. I'm tired of leaving work upset. Especially when I do like my job. I'm so tired of being blamed for everything that's out of my hands. I try not to talk about Jacob's job at work and sometimes people get mad when I won't tell them things but I can't! Like I told my manager tonight I never expected to have this kind of problem when I started working there. Never in a million years would I have thought that people would be so mean and hateful to me at work. It's not fair that I would have to quit my job. To me it feel like then they are winning but I don't know what to do. I don't know how to fix this.