Busybody Dolt.
Bad combination.
OMGoodness. I have worked in NYC and Philly, where all kinds of stuff goes down in the subway (have since moved to a more normal part of the country). No way on God’s green earth would I go up to people having an argument. You never know who’s got a gun or a knife (or a pipe) or who’s jacked up on drugs or liquor.
Girlfriend must have majored in stupid.