You might need more to legally do something, but I am well within my rights to ban these people from my store for what he said.
How am I supposed to interpret his words?
I'm interpreting this as if I talk to his girlfriend that way again, he'd want to throw down. I don't fee like that is a stretch of an interpretation. He might have meant my tone of voice moreso than me refusing service and kicking her out.
I was heated when I refused to serve her, definitely. But sometimes you just have to put your foot down and I finally did. I'm not sorry for anything. Drunk person comes in and expects me to serve them, tells me they love me(on more than one occasion, which is creepy), doesn't seem to care my job is on the line if they go out and get arrested. Not sorry for how I spoke to her, not sorry she was apparently afraid to come in for fear she would see me again.