Do not interfere, it's none of your business. This is their own arrangement, she is the one that comes back to him. Besides, let's say that you intervene, walahi I'm almost certain that she will blame you if they break up because of your intervention. That's how fickle minded women are.
Why would she cause an argument and basically humiliate him in front of his friends?
Why would she cause an argument and basically humiliate him in front of his friends?