Stuck, confused, and dont know what to do.

hello......
hello imrescenda rose my brother hs a huge argument with his girlfriend.It gets really annoying. She goes to me for advice and she complains to me and treats me as a therapist teacher. She is acting so emo i just miss her old self. It doesnt matter if the boy friend is out her life. Like the old saying "theres more fish in the sea". I told her its okaii, but she never listens to me. She acts like it's tthe end of her life. I'm sicken tired of it! She calls every now and then, but my brother just doesnt want to talk to her.

I reall feel sorry for her, but she needs to know that my brother is not the only cute guy in the world thats madly in love with her. She needs to learn how to believe in her self. I'm only 2 years younger than her and im the one giving her advice every now and then when she needs it. I wish she could tell some one else about her problems! i wish she could tell her mom or something. im tired of this bull crap! i wish they could be together again so this non-sense will stop! XD