Michaels Stores complaint: Being harassed and bullied by coworker and manager

I am overnight stop we have a guy on our team that is very aggressive everyone’s scared of them and I’m tired of being cussed out and bullied and him coming into my personal space I’ve complained to management and it’s been going on a few months and I keep getting that I need to be nice when I’ve done nothing to make this young man attack me all the time everyone there scared of him cuz he’s so aggressive so no one says anything he’s stayed in the store after hours when the store is closed and slept in there overnight no one’s done anything one guys already quit because he doesn’t want to deal with him anymore my store manager is not very nice.my brothers boyfriend work for Michael’s and he got me the job he told the store manager and others that he slept with me and my brother but I did not find out tell a coworker told me this was going around the store I said something to store manager her way of dealing with it was to make jokes about it all the time even after I ask her not to