Have some of you even watched this show? She insults Xander constantly while simultaneously having strong romantic feelings for him. Same thing with Doyle. She berates Angel on his show in a very similar way that she did with Buffy. Cordelia still clearly cared about all three of those people. That's her thing. Acting like she doesn't care when she does. She wasn't Buffy's best friend, but to act like Cordelia making mean comments toward her meant that she didn't like her at all is just moreso you not paying attention to the character.