What should I do if my girlfriend is raped by my brother? A man's perspective

First, look at your friend’s character. If he even plays with his brother’s woman, kill him decisively. Second, look at your girlfriend’s character. If it is her fault, break up with her decisively. (I'm not good at dealing with women), and no matter what, your brother can no longer treat him as a brother. Damn it, making a sister-in-law is a taboo in the world. No matter what the situation is, if you kill him, it will be on your head. There's nothing to say. Can you bear wearing a hat?