My girlfriend and I got into an hour long argument about poop and pooping. Am I in the wrong or is she just being immature?

So my girlfriend and I were chilling on the couch watching TV and in the show we were watching, a couple was laying in bed talking about what it was going to be like being married. The woman asked the man if he could handle her pooping. He said sure. Then she emphasized that she takes major craps every morning that require 2 flushes. He had a disgusted look on his face but said he'd get some spray or ask her to use poo-pourri or something.

My girlfriend turns to me and asks if I could handle her pooping. I said "Sure, I guess." Then she reminds me of a time she sent me a Snapchat of her sitting on a public toilet and I "reacted poorly". I said I was shocked she sent that and she told me that I needed to grow up because she sends snaps like that to her friends, but she wouldn't send me a snap like that ever again.

Then she asks me if I would poop in front of her. I said I'd try not to and that I avoid pooping in public when I can. She asked why. I told her about a time a guy at the gym watched me poop through the stall crack. She said that I need to toughen up and go when I need to go & that gym incident was only one time. She also said holding in poop is why I have acne.

Then she goes on to describe how she's pooped in public plenty of times and weird places she's pooped. She told me about how she had bad diarrhea at a McDonalds and how she almost pooped on the floor. She told me how during college, she had bad gas during a morning class and went to the toilet to try to poop but another lady was in the next stall. They had a farting competition and my girlfriend said "she won" because the other lady ran out of the stall and didn't wash her hands. She even said she got mad at her RA one time so she broke into the RA's bathroom and pushed out a nice log into her toilet tank as revenge.

She brought up all these stories to convince me that pooping in public and around her is ok. Why is she making a big deal out of this? Does she have some sort of poop fetish? Lol
My girlfriend and I got into an hour long argument about poop and pooping. Am I in the wrong or is she just being immature?
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