friends with benefits -- any advice??

This is not friends with benefits. This is him using her when he's drunk. He is taking advantage of her feelings. A true friends with benefits relationship only occurs when neither one of the two people have any feelings other than friendship, but sleep together for physical satisfaction when they are not in a relationship.

You should know what you are getting yourself into. Proper expectations must be set to avoid such problems later on. You should know your place in everything that you will go through. So in the end, you will not blame anyone and be responsible for your actions.

I feel sorry for the girl, as a woman I know how hard it is to be in-love with someone and not love you back in return but what’s harder is to find yourself in a situation where the man you love is taking advantage of you. What happened to both of your friends might be a consensual relationship and as two mature people they might find it acceptable but I still think that their relationship is unfair and in the end the girl will be the one to end up broken.

I won't judge other people regarding that matter if they are about friends with benefits at all. But then they must be careful with the consequences and they should know their responsibilities if they are willing to encounter this type of friendship. Sometimes they don't really have the right to demand something more about friends with benefits. Like for example my officemate before which is a girl she keeps on complaining about her partner for not being responsible and a typical guy who always wants to be with his friends rather being with her as a wife and with a kid. But then when I have heard the story on how they met each other she told me everything that she only got pregnant by the age of 27 where in fact they are not committed to each other in relationship but they are close friends who happened to made something. So there you go I could only think that they have been friends with benefits. And yet no wonder if the guy or her husband right now is not responsible in family because I think in the first place there was no love involve at all.

Main reason as a general rule not to mix friendship with pleasure. But nonetheless they did. So the only thing they can do is either continue this way, but of course the girl will continue to be hurt or severe ties. Quite difficult to continue friendship when the emotions are involved is my thinking.