Incredibly disturbing dream

I had a really, really disturding dream. I walked into a unisex changing room outside a swimming pool, and I saw Brandon *Mobley having sex with Laura. So when he got out to the swimming pool, I punched him way harder than I would actually be capable of punching him, then jumped on him and held him underwater until he died. I had no remorse, no regret, just a sense of relief that he was gone. In the dream, it actually felt good. Of course when I woke I was shocked and profoundly disturbed. It wasn't even scary in the dream, but it's scary to think what it might mean about my unresolved feelings for Laura.