In the given case the ex does not want to have anything to do with him and they do not communicate. The relationship ended over 1 year ago. She was very clear that she does not want to be given as a reason for hiding the new girl, because it is disrespectful and not fair. Ex girlfriend assumes other reason, because she told him not to do that and that the new girl has nothing to fear from her.
What does that mean? Why would a guy do that to the new girlfriend? Girls: How would that make you feel if you were the ex or the new girl?