While it could have been a femboy (It's 2023 after all), the scenario I've seen play out a lot, is young soldiers go to the Juicy Bar, the girls sit with them and chat them up while running up hundreds or thousands on a bar tab. (sometimes there's a back room tug, but often not. These girls are good at promising lots without outright contracts). When the money runs out, the girl moves on, the guy feels cheated, and gets loud, then the bouncer steps in and the fight is between the bouncer and the soldier. Cops and MP's get called.
The other common situation is dude falls in love with hooker, pimp intervenes, hands are thrown. I've seen that in Korea and Bahrain.
Young idiots will spend money, and girls will pretend to like them for money. I imagine there were some hot young Celts near Hadrian's Wall raking in the Denarius (Denari?) and there will be hot young Martian girls at the frontier stations willing to spend time with Colonial Marines in exchange for credits.
