Will he move to Cali after I move first? Does he love me that much?

Negotiate it now, while the good will in your relationship is at its peak. Think creatively about synergies & opportunities for him if he moves -- positive reasons why it furthers his dreams. Offer him a creative exception or concession like finally allowing him to get that puppy you've been resisting. Above all, make a plan & think about happiness, not obligations.

:) <3