You get to win the Nobel prize as the most patient girlfriend on the planet, when such a prize gets established.

Seriously - he is self-centered to the point of being funny. Do all it takes to block him from contacting you, and threaten him with a restraining order for a good measure (to get him in touch with reality a bit - calling you at 8AM on a Sat to watch him try on clothes tells us that he does not have a particularly firm grip on reality).