<human>: So for context, my girlfriend and I rent a room from her sister in her home  recently her sister has put her house on the market and there are regular viewings over the weekends. As well, my girlfriend and I have a small amount of time to save money, find a place, and move. So needless to say I'm stressed, and I can't even spend my weekend playing games and relaxing, so I'm frustrated. 
So during todays viewing I decide to go visit my girlfriend at the subway she works at (also the subway I worked at, and recently quit for a better job). When I get in my girlfriend is sweeping up the lobby ad I decide to sit down and wait for her to be finished before I order. This is when my asshole of a former employer walks in. This guys does not like me. He immediately begins to tell me I'm distracting his workers and that I need to leave. When I say that I just wanted a sandwich, he tells me he doesn't need my business, tells me again to leave and not come back. So I leave and on the way out just call human asshole. 
While sitting outside killing time to go home I notice that he's been in there for a while. And I'm beginning to worry he is going to punish my girlfriend or even fire her for my conduct. I've texted her but have received no reply. I'm sitting in the bar across the street right now waiting. If I got her fired only months before we need to move I am definitely fucked. I'm praying that I'm underestimating how much of an asshole my boss is.

Give me the gist of the text in a nutshell
<bot>: went to see girlfriend at former place of employment. Former employer bans me from store, I call him an asshole. Worried he's going to fire my girlfriend.