HoW can I tell him we shouldn't hangout, his dad is threatening me!!?

So I really liked this guy, and he likes m back! Like one time we were talking and he just kissed me! His so hott he has gold hair it goes alittle past his eyes, his freaking hott!! So anyway his dad is the princible and His super racist once he figured out his son was kissing a black girl he banded him from seeing me. So me and Levi been sneaking around seeing eachother, I love him so much. But his dad found out and threaten me if I keep dating his son he was going to chang all my grades and lie to my parents that me and Levi had ! D= So I told Levi what his dad said and he said he doubt his dad would do that to him, but I know his dad would. I don't know how to tell him we should hangout anymore. Becuz if his dad lies like I had with Levi they'll kill me. WHAT SHOULD I DO? his making hard for me by sensing me text messages saying he loves me and can't what to see me. I cantbrake up with him on the phone that's cruel. His obsessed with me and I'm obsessed with him! WHAT SHOULD I DO?