Need opinions. Sorry about the length?

Although she was wrong to fire you in that manner it really depends on your state laws and business practices. In SC they have what's called a "Hire for any reason, Fire for any reason". Which means your employer can fire you without giving a legitimate or justified reason. Now when it comes to a companies standpoint, it depends. Does your company require a certain number of write ups or coaching before termination? These can conflict with each other and even though you can be held to state law, it may not be general practice at your job. Most companies have posted pictures and contact information of higher ups somewhere where employees can visibly see it. Gather that information and relay your questions to the proper people. I would suggest leaving out the fact that you've had some personal issues with this person. Focus solely on your good work history and being unable to find a replacement while ill. As long as you didn't call in 10 minutes before your shift and gave the required amount of time advanced notice of your absence then you shouldn't have been fired. I had a somewhat similar situation when I was young and working in retail. I had a manager try to delegate her duties to me. When I refused, she fired me on the spot. I contacted her superiors, who found her completely out of line. She was fired for her actions in that situation. It's one thing for her to kindly ask you to help her find a replacement because of her lack of resources from being out of town, if it is her job. It's another for her to delegate her duties to you. Which most corporations take seriously.