My boyfriends parents are separating us (advice?)

basically they found out we’ve been having sex and now I’m not allowed to see him ever again.

he found his old iPhone and has been able to use that to contact me.

they took all his electronics, his door off it’s hinges, and he’s basically grounded forever.

I’m honestly not ready to let go of him but I know I need to do what’s best for him.

Has anyone ever been in this situation that can give me advice?

it would be greatly appreciated.