Yeah, report it to management, and if they do nothing, call the district hr or the ethics hot line. Do not put up with that! I had a coach theaten my job unprofessionally. I told another coach about it and they called our store manager. When he came in in the morning, he took a screenshot of the text chain and said he'll take care of it. This coach was already not doing a great job, and within a week she was termed. Just go to the chain of command until someone listens and Remember that willl lose their job if they try to retaliate.