<human>: Can you give me the gist of the text in a nutshell?

A little backstory. About a year ago I was working underneath said supervisor and was given very little instruction, but felt confident I knew what I was doing. We butted heads a few times but i stuck to my guns as best as I could have. My hard work paid off and I made money for the company. 

Fast forward a bit to performance review and I was given a less than stellar report for work she was told to do. More or less I was punished for standing up for myself. I would later leave to avoid confrontation because of emotional fallout that would accompany the review. 

Now, my SO has a chance at doing something she was never fully able to do but under the employment of said person. Am I wrong to feel betrayed?
<bot>: Gf gets job with employer who was a humongous dick to me. Am butthurt. Is it ok?