H.A.T.E.R.S.
A person who gets so mad when someone else becomes successful that they start acting like they're the only one who matters.
My H. A. T. E. R. S. brother acted like he was the only one who mattered when I got a job.
My H. A. T. E. R. S. friend called me a fake when I won the science fair.
My H. A. T. E. R. S. mom cussed me out when I got a scholarship.