<human>: Can you give me the gist of the text in a nutshell?

I hang out with my co-worker (who is essentially my work wife) on all of our breaks. We've been close friends for about a year now. All our other co-workers know that we are pretty tight.

I ran downstairs to the parking lot today ahead of her to grab my sunglasses. From behind me, I heard another co-worker say to my work wife "He left you!"

My work wife responded back "No, he's waiting for me. He better wait for me if he knows what's good for him," and the group of co-workers she was talking to got a laugh out of it.

When I walked up to her, my exact words were: " 'He better if he knows what's good for him'? What the fuck is that shit?"
She said: "I was just trying to look like a badass in front of the others. Let me have this one!"

I responded: "Do you feel like you've accomplished that?" and she said yes. I was annoyed, but I let it go for the time being.

I'm still feeling a little upset at this, but I also feel like the point of saying anything about it again may have passed. Am I overreacting?
<bot>: My co-worker/work wife made a comment that made me feel like I was her lap dog/whipped or something. Am I over reacting?