I am one of those people that I can truly say dreams are the missing link of healing trauma. I have been using dreams since I was 10 yrs old to make sense of them so I could stay sane in the chaos I grew up. I still do use dreams to heal especially now that I am in intense therapy, they are godsend.
It is hard to know anyone's dreams or their meaning (maybe this is why scientific world does not want to use it as a healing tool in trauma except few lost Freudian/Jungian therapists).
Two things you must remember:
All dreams are reflection of you so everybody in it is most likely acting a part of you. So if you see an uncle you hated in the past or as a child, being hateful or doing something wrong, it means there is something hateful or bad that you are avoiding or hiding or doing etc. That uncle represents "hate" in your subconscious. Same can be said if you had a grandmother you loved or a dog etc. They will show up to bring the representation. Dreams (mostly) use symbols. So things, people, events, are symbols of feelings you have now or you had them or you will. hard to say but they represent something.
Now if your dreams involve people you loved and for sure did not sexually abuse you but they seem to be doing that in the dream (not sure if this what you mean), then without truly knowing your story because you loved these people, maybe they are trying to represent that you are loved and it is time to accept the sexual abuse of the past, they are healing you. They are connecting love (their love from you) and to your past to give you a different feeling of the experience. What happened happened right but you gotta heal by accepting and moving on. So could be that. I do not know for sure but that could be one interpretation.
The other thing about dreams is: if you do not make sense of a dream, the message will keep coming back until you actually make sense of it. This does not have to take long. You wake up, you remember your dream, and you acknowledge the feeling. for example, you had a dream of being stalked. You wake up and you acknowledge you feel intrusive or you feel grateful knowing that feeling while you were safe in your house and in your bed, whatever feeling that pops in first is mostly right. Then you acknowledge that is what my dream mean and it has to resonate as if your feeling is the gospel in your stomach and boom, the message is received and most likely the dream does not come back or comes back with much softer and easier version to understand to provide more details. Resisting nightmare dreams is what makes it more nightmarish and repetitive.
Accepting a dream good or bad, actually makes it easier for the dream to expand and give you more detailed information that is so easy to understand because you are cracking the code.
There are more ways to interpret dreams but that is it for now.
hope this makes sense.