I think Zen's reply is very insightful and to the point, but I wanted to add my perspective. It seems that more important than determining whether this man can change is for you to figure out why you feel so drawn to a man with so many problems. You even admit being attracted to his vulnerability...why do you find this characteristic so attractive? The games you describe him playing...pulling you to him then pushing you away...are rather cruel. It would be very valuable for you to examine yourself to determine why you would remain attracted to a man who would do such cruel things to you. You may still find that you love this man, but you will at least understand your part in the relationship.

Now, about your question. I do not have OCPD, but I do have a different personality disorder, and my understanding from what I've read is that there is very little hope that most people with personality disorders will be "cured". We can learn to manage the disorder and try to minimize it's negative effect on our lives, but the disorder itself will always be there. From what you describe, this man's disorder is pretty severe. So, while he may improve (such as his getting a credit card), it is very unlikely that he will ever be completely free of the disorder.

Regardless of whether you decide to continue this relationship or not, you are always welcome to come here to talk about it. And even though my reply may not seem very positive, if you do decide to pursue things with this man, you will find lots of support here.

Good luck.
mj