I didn't tell my friends that one of our friends is a sex offender. We are all virtual friends, which did influence that decision. He told me 2 years ago over text. I grilled him a bit and he seemed genuinely remorseful and he hasn't considered doing such a thing since he was in middle school. I'd been in a similar situation before, where I had to keep something like that a secret and try to protect my friends, and I was successful. So I agreed to keep it a secret. I stayed close with the guy so that if anything seemed like it might happen, I'd know.There were times I tried to warn people from getting too close with him, meeting up in person, or getting into a relationship. Well, my friends found out, and I let the know that I knew, that I had always known, that I had kept my mouth shut and tried to keep everyone safe the way I had in college. But even though I don't think I would have done anything differently, I still feel like a disgusting person for not just coming out with it.