AITA for saying the “female” word too many times?

My girlfriend recently started going to a nearby Hooters for drinks after work. She invited me to come with and I did, but I noticed it was completely different than I expected. Instead of a bunch of attractive girls in minimal clothing, it’s just regular mid 30s moms serving tables. I was not turned on at all and felt kind of sad looking at them. It was obvious they weren’t there for the tips - they all had their names pinned on their aprons.<br><br>One of my girlfriend’s coworkers came up and I said “wow, you can tell this place isn’t for males. All the servers are females. I wonder why. One of the managers is a female. There’s several females working here. I guess girls like coming here. The bartender is a female. Oh look that’s another female over there. They’re all females, can you believe it? I can’t wait to see more females. Oh, there’s another female standing over there. This whole place is full of females. There’s even more females! I think we might get served by a female. Oh, it’s another female.” <br><br>My girlfriend was starting to look angry and sort of cried in the car on the way home but wouldn’t tell me what was wrong. When we got home she broke down and said, “why did you do that? I work there, do you think I’m disgusting? You made them all feel so embarrassed. You embarrassed me. Why would you do that? How does it make you feel calling them females like that? You made all the females there feel like sluts. It was so humiliating for me and my coworkers.” I was like meh it’s just the dictionary definition word for an adult human with a vagina, I can’t figure out what I did wrong.