like intimate relations, married couples should keep their arguments private. it's inappropriate to carry on in public, leads to long term shame, and makes bystanders uncomfortable.

having said that, if flatbush girl believes that a couple arguing in public constitutes "abuse", she clearly is out of touch with reality. such a world view does not bode well for her future marital bliss, and likely explained why she is still single.

the appropriate response to a chance encounter with an arguing couple, especially when you know nothing about the background of the argument, is avert your eyes to reduce their future embarrassment, and keep moving. the one thing that this world does not need any more of, is "busybodies" interfering in other peoples lives when they don't even know those people.

shlomo hamelech had some choice words regarding people who involve themselves in other's disputes.