A "friend" a "bad friend" who cares only about themselves. A friend who gets their way no matter the cost, and who they step on along the way. One might stay in a "frenemy" situation because they are fearful of this person. Or they are oblivious to the reality of the situation. A good way to spot “frenemies” is to judge reactions if they don’t get their own way. A frenemy will be in the wrong and wait for you to apologise. They will defriend you on social media and bitch about you, your life and most importantly your relationship behind your back with anyone who will listen. They will be mean to you or lay guilt trips to get their own way. These “frenemies” cannot stand to see you happy without them and are worried they will never have something special like you have. There is jealousy at the root of everything they do and they project a lot of hate towards other people in your life. They will interfere in your relationships and say that they are acting in your best interests. This is a lie. These are also known as a toxic friendship. If something is toxic it needs to be cut away.
Classic example 2: frenemy will bad mouth your relationship and even lie about your significant other because they know what to say to break it up and keep you to themselves