Honestly, if someone loves you, they wouldn't listen to outside influences. But Rush is right - you have to listen to your head as well. You can't be blinded by the way someone's treating you just because you love that person. If they loved you, they'd stick up for you and let that other person go. She doesn't owe him anything and apparently, he's too immature to be just friends with her. She should respect you enough to tell that other guy to lay off or risk losing her as a friend. Better yet, she shouldn't have guys as a friend unless they've been like childhood friends - especially none that LIKE her. It's just asking for trouble later.