It must be his pirate charm.
Or how much of an out doorsmen he is:
His knowledge of foreign weapon systems:
His bad ass ninja skills:
His rivet k0re-ness:
How much of a good kisser he is:
His overwhelming intellect:
I mean, look how smart he is, I can tell, see the look on my face.
His excellent manners:
His healthy appetite:
His superhuman strength:
His exotic style:
Good hygeine:
His ghostlike bowling skills:
His unquestioning obedience:
His taste for fine Cuban cigars:
But mostly for how much he loves me: