I dont blame you. I would find it very difficult to be in touch with an ex especially if I was still quite attached to him. I definitely wouldn't want to be hearing all about him and their relationship. How much does your friend like him? I think if I had a "best friend" and her ex asked me out - i would value my friendship and turn him down. But - it does depend how much she wants him. Romantic love is very powerful. Can you talk to her about it?