That's a tough spot. Though I'm hardly one to pass on any advice, I can only envision what I would do were I in your shoes. I think I'd probably tell my friends that I was looking to take an indefinite break from the Bible studies to do my own research and Biblical studies. If they were to start asking questions, I guess I would have no choice but to answer them as honestly as I can, and let the Lord guide me on how much to reveal, and when.
Unfortunately, part of the process of learning truths is that it sometimes alienates you from those that are very close to you (ie. family, friends, etc.), and can sometimes make you feel segregated from the rest of the world. I myself just moved here to a new city, and I haven't made any real friends or contacts, or had a chance to fellowship with anyone. All I can do is continue to study on my own, using resources from the net. Had I been just a 'regular' Christian, I could have gone to one of the myriad of massive churches that are within walking distance to where I live, and become part of a larger community. But as it stands right now, I don't feel drawn to any of them in the slightest, and that unfortunately means that I have to continue to walk on my own.
Even having said that, a pen-pal that I made in Toronto is coming by tomorrow to spend the day with me. She's very much still caught up in the ways of mainstream Christianity, and I seriously wonder if she's going to start questioning me about my beliefs. I too am hesitant to alienate her, since she's been the only real friend that I've had the opportunity to hang around with since moving here. But I will let the Lord guide me on that one, and whatever happens....happens.
On the positive side, perhaps this may provide an opportunity for some of your friends to learn these truths just as you did. I don't doubt that a lot of Christians still aren't 100 % comfortable with the idea of an eternal hell and God sending His creation there, but that perhaps they just haven't been made aware of an alternative answer to that doctrine, or they're just a bit timid to speak up for fear of being made fun of or looking foolish. Again, it's all in the Lord's hands as to what His plan is for you and your friends.
Incidentally, did you try finding like-minded believers in your area using the Bible-Truths forum? There seems to be believers from all parts of the world, and you may be able to find and develop new friendships that will encourage and strengthen you as you walk along this path of truth (why didn’t I think of doing that for myself???

……..Sigh!

).
Anyways, as you said, the Lord will work everything out for the greater good. You'll just have to trust Him with it (easier said than done, I know). I’ll be sure to keep your situation in my prayers.
Kind regards,
Rob