he is playing you. plain and simple - if he wanted to be with you he would be -
sorry - you are not being too pushy - he just wants to sleep with you if you will let him and live with the GF as well as sleep with her - If he wanted to break up with her you driving into the driveway with him would have been the perfect opportunity - I hope that is not to blunt but it is obvious from someone who has been through it.