I think that the names she is calling you are most certainly not okay. That kind of behaviour is not in any way productive and is not, imo, how to go about resolving an issue or point of conflict within a relationship.
You mention that you normally chase after her, tell her that she is wanted, but that this time the names that she calls you have really stuck. If you don't feel that you can chase after her then don't. If you continue to play that game it won't ever stop. Why not take a bit of time to think things over, tell her once how what happened has made you feel and then leave it at that. The ball will be in her court, let her do what she will.