Could anything bad come from being friends with this guy?

I asked as similar question, and but didn't get much input. Anyways, I've been friends with this guy since 2009. He's 27, and im 29. Recently be told me that he was feeling very guilty, and depressed. I asked why, and he said he dated an 11/12 year old when he was 18/19. He said he told His therapist. Im at least 96-99% sure he told me this. I asked him about it several days ago, and asked if im remembering right. He said "no", and that was the end of it. He texted me yesterday and asked how my new years was. I ignored him, but I hate ignoring people. I want to be his friend since he seems to deeply regret what he's done, but mostly everyone on reddit is telling me not to be his friend. What's the worst that could happen? I'm not afraid to be around him or anything. Would my being his friend somehow condone the behavior? Maybe I shouldn't have said this, but when he told me this, i said "well, as long as you know it was wrong, and you never do it again, then we are good". What do you think?

Could anything bad come from being friends with this guy?
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