lostboyalone,
I am so glad to see you back and I'm glad you are with a family that is good to you now.
That fear of "maybe it won't last" is a common one among boys who are in new homes, but you are a great kid and I bet your new family will care for you and support you as every boy deserves.
I so remember the feeling you are talking about when you ask how your new family might view you. When I was your age the knowledge of what had happened to me seemed to consume everything else and stick in my mind all the time. I felt like I was wearing a sign and everyone was reading it. I was terrified at what might happen if my parents found out and I felt unsafe and a fake.
But you know, bro, a lot of that is the fear that any boy would have when something really bad happens to him, and the rest is junk that abusers put in our heads. They tell us we wanted it, that things happening to our bodies meant we liked it, that it was our idea and our fault, and lots of other lies. They do that to shut us up and in order to keep us as long as possible. It's all bullshit and cruel lies. All lies.
lba, you say you don't know who you are anymore. You are you: a cool 15 yo with a lot to say and a cool sense of humor - plus a lot more. What happened to you has harmed you, yes, but it does not define you. It is someone's else's cruelty and shame; you are not to blame and you have done nothing wrong.
If something like this happened to my son, or to a boy in my care as a foster child, I would want him to understand that I want him and love him for who he is. Once I knew what happened, I would want to protect him and care for him and help him in every way possible. His abuse means he needs special attention, but I would not love him differently or less, in the same way that if my son fell out of a tree and was injured I would want to give him the special care he needs, but I would not love him any differently or less.
Take care,
Larry