It is never a good idea to decide to play white knight on behalf of another man's woman:
A pair of lovebirds facing life as jailbirds were arraigned Sunday on charges they capped a boozy date by stomping a would-be good Samaritan to death in the street. Quintin Guerrero, 61, was killed when he rushed to aid one of his accused attackers, Tosheba Alford, 20, after she jumped out of a moving cab in front of his Bronx house to escape a beating from her boyfriend, Alford's mother, Queen Smith, said.
As I have written on several previous occasions, unless you are prepared to interfere by immediately utilizing lethal force, you would be wise to stay completely out of a physical encounter between a man and a woman who are romantically involved. It is not at all uncommon for the woman to turn and attack the man who thinks he is coming to her defense.