This is my first job after graduation. I’m working as a assistant engineer(AE) I’ve become the favourite between the other AE. My supervisor have been giving me overtime now every weekend to help him do some maintenance which gives me double pay that day for a few months now. Recently, one of my co-workers send out a email to my supervisor saying that the overtime schedule is unfair as I’m getting far more days of double pay compared to the rest. My supervisor have then adjusted the schedule to be fairer for the next month. I’m upset about the changes naturally. This make me feel like I’m not welcome here and have make me consider quitting the job. My co-worker has been in the company for many years more than me. I do feel kinda guilty with the schedule with the balance of overtime given before too. AITA if I confront my co-worker about the email he send or should I just quit?