Not related to the story but

That’s really fucked what the guy is doing I hope things get better

First of all, I hope that you are okay and I am sorry that you have to go through a situation as messed up as this... when your parents should be the one to make sure you're safe and sound from this so-called friend.

I don't know better but I know you are doing the right thing by at least talk about your situation. I think that if your parents fail to protect yourself from this friend you can seek help from a trusted adult other your parents who someone you have trust if you have one that can help you go through this tough time that is to say a friend or a relative...
You can seek professional help. Again I am sorry you have to go through that and I hope everything would be better for you.
Distance yourself from this person and never be alone with this person.

If you can... MOVE. If they allow him to stay in your room, which should be common sense to not do that, it may go down the bad way . I ain't trying to scare you but that is very concerning.
The only options i can think of is to 1.Try to talk to your parents (but like I said, it's common sense not to do that). If talking to them dont seem to work, u can talk to trusted adults to see if they can help you. Or even to see if they can talk to your parents. Parents sometimes, for some reason, don't listen to their kids and may require another adult to intervene to get their head straight. Like I said before, I'm not trying to scare you but sometimes, parents don't like this and may confront you after the adults leave. Just putting that out there. I got some friends who did this and it worked and some friends who did this and their parents went ballistic.
2 If they don't seem to do anything, I really do suggest moving. If you got trusted friends, relatives, adults, etc, see if you can move in with them . Pls make sure they are safe and trustworthy. If this don't work then 3. Save money and go find a place to stay. But this means during the time of saving, you may encounter a few more of those unsafe situation with that pervert. Also, idk if this a requirement or not anymore or that it varies between state laws, but a few years ago, it was required for the tenant to have a co signer if they got no credit score. 4. Im not forcing this option but go to college and get a dorm. I say this bc this is the only thing I can think of that allows you to have a roof over your head without paying right away. But that means you go in debt. Idk dorm requirements and if you need to take certain amounts of credits to get a dorm but if they don't have credit requirements, just take one easy class (art? You need to buy materials so science? Science too much thinking lol) , get a cheaper dorm , then work full time to save up for that apt. But like I said before, idk if you need credit score or co signer. Dorms are pricey tho so the cheaper the college, the better.
5. Pls do this first.... if you can look up youth human services that assists youths your age, they might be able to assist you in your situation. They might be able to give you better advices than mines. If you are still in contact with teachers or counselors from highschool, try asking them. Schools tend to be connected to services that assist kids and youths.

I'm sorry I can't be much help.

Nooo you're really helpful. Thanks and I'm gonna move in with my aunt.

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Your comment made feel really supported

It will i know

Then I am glad you did, even a tiny bit. Also I am glad to know that you can be away from someone this harmful to you.
Stay safe and happy !

That's good! Please remember to grab all ur paperwork like birth certificate and social security card. Don't lose them. Obviously your state ID too. If you couldn't grab your all your stuff and need to go back , make sure to have someone there or get a police to be there . Idk how your parents are so thats option is kind of for parents who planned to trap their kids in. Gl!