Should I speak to my friend's girlfriend?

Yeah, I think you should definetely call her and tell her how you feel but don't talk for your friend. He should be able to call her and do that himself just tell her you point and maybe she will understand.

Trying to talk to her wouldn't hurt. But if you think he is your best friend and she is the woman he loves, you should try to be nice to her and be friends with her and give your friendship a little slack for the sake of your friend's relationship. It is sacrificing, I know, but that's what friendship is about.

Calling would never hurt but from the sound of it she's just being insecure. After six years of a relationship she should know better than that and if she doesn't then maybe there's other motives behind the break up. If she is normally dramatic this may be a bide for his affections and her attempt to break the friendship between you and your friend so she can have him all for herself. If she can't get used to 'sharing' her man and accepting that he is going to have other people in his life then perhaps that isn't a healthy relationship for him to be in.

Either way be there for your friend and if the ex decides she can't handle having an adult relationship then make sure he knows there are other, and better, fish in the sea.

I think this would be a very nice thing to do. You haven't given much detail but maybe she does have a reason to be jealous. The three of you should talk about this situation and you need to ask them if their relationship is worth ending over things that MIGHT be happening or MIGHT happen. Also by you talking to her and trying to sort the situation out between the two will show her that she has nothing to worry about and show him what a great friend you are. On the other hand if she's is a cow and you think your friend can better just forget it and help find him a new girl that will keep him happy and trust him.

Maybe she doesn't really even think that and is using it as an excuse, who knows. Maybe she just wants HIM to tell her that she is the most important woman in his life. I really don't think you should call her because she might really be jealous of you and if she is, she won't trust what you say anyway.

Coach your friend and help him get her back if he really wants her. But, maybe he's worth looking at again. Best Friends are hard to come by and it may be that you can look at him through different eyes and see more than friendship.

It could be that is why the girlfriend said what she said. Maybe it is true. Good luck!