Depends upon the situation. If you mean this guy hit her at some point and you only have her word for this, then yes you went too far. You aren't 'judge, jury, and executioner' after all. Now if you saw this guy hit her or he 'gloated' about it then lay the smack down and give him a kick for me!
As long as your not hitting her.
Don't know how 'violent' you might be, but if you beat him down for beating on her, you did her right.
I would have done the same as you. But as the saying goes. Two wrongs dont make a right
i say i can understand why you would wanna beat the **** out of some coward and i personally love the idea but i think maybe you shoulda talked to her about it before he beat this guy up and see how it was gonna make her feel.
She might be wondering when you are going to turn on her next.
Not if he hit her in front of you.
Um so let me get this right - you took her away from a violent situation and tried to put it right.....with more violence? This girl has terrible taste in guys, poor chick is in for a miserable life if she doesn't get a bit of savvy soon!