That's rough. :/
If you two make eachother happy then hey, that's what good for you. :] I won't comment or warn you about ages and all that, my boyfriend's parents met when his mom was 14 and his dad was 18.... they've been married 34 years and are absolutely adorable. Granted, I had a worse 16-year-old experience. lol! Everyone is different.
Anyways, I -do- agree to back off. It sucks. A lot.. and I understand you came here to vent, but maybe try to abide by the parents through winter and then come Spring.. who knows? Maybe they'll see you've made an effort and allow you to be in contact once more! :] I had a friend deal with a similar thing and the parents literally got a restraining order against the guy, so I just think you should be careful.