Afraid to tell husband about past

I’ve been with my husband for years. We’re married and have a child together. When I was a preteen, I was sexually assaulted by a guy a few years older than me. I haven’t really told anyone, and I definitely have not told my husband. I heard recent news about my assaulter and I can’t get the event out of my mind when for so many years I had never even thought about it. It’s causing problems between my husband and I as he’s getting upset that I’m “dissociating” lately and had an attitude. But I’m too afraid to tell him as he may be angry that I never told him before or angry to even hear what another guy had done to me. What if he doesn’t believe me? No one ever believed me. Everyone blamed ME when I was younger so I just shut up about it and never told anyone. I don’t know if I should tell him or not.