Hang in there. You need to stay strong. You have a lot of support here. You must do what is right for you. He made a choice. He has to live with that choice. He can not have it both ways. if he really loved you. He would not be hurting you like this. It sounds more like he is stroking his own ego. He is more in love with himself then you or his ex. Tell him goodbye and to never contact you again. If he had any feeling for you at all then he should understand that by getting in touch with you he is hurting you.