Ok so theres this guy that im datin..help?

ok so im datin an AMAZING guy and i love him so much he loves me too. but my mom and my stepdad wont let me date till im 18. how do i tell them that i found a guy that didnt screw me over and he loves me for who i am??? my real dad seems ok with it but he hates every guy i atempt to date which seems normal. he is at leaste gettin insed to me growin up and datin guys but my mom and my stepdad wont budge on the rule at all..............