In dreams it's really not so much about who we dream of but rather the information within the dream itself.
You are in a situation that your not totally comfortable with and subconsciously you're getting ready to move on. This could be a relationship with a partner or even a work related situation.
In any event, subconsciously you feel it's starting to break down and you fear (or at least have some anxiety) the stress and pain that will follow.
In essence, your dream is conditioning you to the eventual break up so it will hurt less. Despite that, nothing is written in stone.
It's not clear to me if this is a choice for you (is it within your control) or if it's something you are sensing from the other party.
Regardless, it really doesn't matter if it's something you want to maintain or allow to break, you still need to sit down with those involved and open up a discussion. You feel somethings not right and it's time to clear the air, to fix it or move on.
I trust that makes sense to you and that it helps with the choices to be made.