Anxiety and expectations

I'm still at work, we don't close for a while. I have one delivery I look forward to every Saturday  my co-worker was supposed to go home an hour ago but my manager let him stay and keep taking my deliveries. I bust my ass for my company and I'm never thanked for any of it. Cut this cut that do this do that make this get that..... On top of dealing with a thankless job and co-workers, someone I used to think a friend tore my family apart and had my infant daughter taken from me and they decided to show up at my job and start crap so I'm hiding in the warming closet that proofs the dough until they leave because I can't stop shaking.... My adrenaline is high and it's fight or flight. I'm trying to stay calm but this person helped rip both of my families apart and doesn't feel bad about it expects me to still be friends with him and act like everything is ok and I want nothing to do with him. I will never see my baby girl again because of him! I'm freaking out and I'm trying not to cry.....