I dreamed that my ex-boyfriend's family tried to plot against me.

Maybe you did something sorry to your ex-boyfriend and felt guilty, but you didn't show it during the day and had a dream at night because of nerve problems;

Maybe you've been together for too long and had a dream without advice, which is normal;

But since it is a dream and empty, I don't think it is necessary to pay attention to it;

If you are really worried, I suggest you give him a call!