Changing DC's

So lately I've been noticing that while talking to a DC or being near to one they seem to sometimes randomly change. I remember talking to this girl in my dream and then she just became someone else. This also happened during a lucid. I was walking into thie room with a Tv and the lights on and I see a girl i know, next thing i know know its like the lights in the room go out and when they come back on its someone else. It could have been because I was losing lucidcity. (Since Im not yet that strong in lucids, i notice that I have to stay away from girls because everytime that a girl is by I get that thought of "Wait Im dreaming, I can do whatever I want.:D " and well I usally wake up soon after that. Does anyone else ever experience random changes in dreams not just with DC?

no my DCs usually stay the same in my dreams. but a couple times they've randomly changed.