Ziggb, sorry for your pain. You are a compassionate person, don't get down on your self for that. Better to be compassionate and kind than an angry, narcissistic, addict. the lies they make to justify the end of each relationship are just that, lies. You know the truth. And his buddies know his deal, they know that a lot of what comes out of his mouth is Bull$hit. They are just there for A drink and a laugh.
This may not help but, but the other possibility is that he is not talking about you. I struggle with this, I want my XGF to be talking and thinking about me. They move on so quick that maybe he is just holding meaningless conversations with others that are not as substantive as those he had with you. He has pushed the truth of your relationship to somewhere deep inside that will come back out later in some form.
Either way you deserve better than that. You deserve someone with compassion and substance. With him it's just lies, and anger.