Time Stands Sti you obviously don't listen to adults, so coming here asking for adult/parental advice is a bit of an oxymoron. I know you will choose for yourself so I'm just going to give you some guidance and whatever you do you will do because it's your life. When planning for your future, you need to have a plan B and C. Nothing will stay on course as you plan, things go wrong, there will be set backs, different opportunities, priorities and goals will change, etc. # 1 Rule plan for the worst, that's where plan B and c come in, you need to be prepared to handle matters on your own. There is no going to mommy and daddy or your BF for help. If you want to be your own person, you have to learn to take care of yourself. Here are some scenarios that you should be looking at ....your parents cut off finances, your BF breaks up with you or you find out he is cheating, you now have no place to live, your parents don't help you out of your situation, you get pregnant.....honestly what will you do if you found yourself in any of these situations? This is what we as adults have to do, to be able to handle things on our own.
What I'm saying is, don't ever expect things to stay the way they are. What everyone has pointed out to you is pretty solid advice, giving you choices so you can keep this relationship. Your parents worked hard to provide you with an education, that most can't afford and never will ever have. Your parents want you to be able to take care of yourself, and not have to ever depend on a man or them for support. This is a gift from their heart, to make sure you will never have to ever need or want. Now here you are cheating them financially, taking all this for grated, trying to figure out a way to cheat them more all because of this BF of yours.
IMO, you are best to keep your place, this is a plan B, just in case things go bad or end with your BF. Plan C, instead of spending all your time at your BF's, get yourself a part time job and stash the money away for say tuition when your parents cut you off. Even if it doesn't happen, you will have that money for later for a trip, new car, a down payment on an apartment, etc.