I'm so sorry to hear that. Being forced to relive a traumatic experience every night sounds like hell.
My dreams have always been pretty mundane, usually just replaying memories of routine things and places I know shuffled around a bit. Nowadays it's mostly bad memories being tossed together, I'm always lost and don't know where I am, I'm late for something, people are angry with me.
For a while I was having better dreams, going on little adventures, sometimes with friends. Once I had one where I felt the most pure and unconditional love, complete certainty that the person in front of me would always be there for me and support me, and that I would always be there in turn. I can't really describe it in a way that does it justice. I've never felt anything like it in real life, just pure love. It sounds so dumb but waking up and having the love of my life just disappear kinda fucked me up for months. I still think about it now and then, even if it was a dream it still feels like a real loss.