Hi, sorry you're in this situation, but I hope you use this time to make a permanent break from your EXABF.
You are constantly telling him he's hurt your feelings and he is constantly showing you that he doesn't care, in fact he's irritated that you're telling him. This man may have been a great BF once, and you may have bonded with him during that time, but it's now dead as a doornail.
You're going to experience a period of grief for the relationship, hopefully not too long, and then with perspective you'll see you're worth so much more than the way he's treating you.
He is a gambler, and addict and already has his posse to provide him with friendship. Let him go and be thankful for a close escape.