Why, in the name of all that is holy, would you even want to? You worked your way through all the local guys already or something? Shallowness is one thing, stupidity is quite another.
When something is full, there is no more room. If he really is full of himself, there is no room in there for you or any other woman to be anything more than an accessory (the Hot Girlfriend) or a temporary convenience (Miss Right-Now).
Get used to it. Or get used. Your call.