What do these nightmares mean?

I've had two nightmares for the past two nights now about my daughter. I have a 5 year old daughter and a 3 year old son, and I don't seem to be having them about my son. Their father and I are divorced and he has primary placement because he makes more and they are around a lot more family whereas around me, they'd be living in daycare and I'd never see them since I work two jobs. We have joint custody and he's going to his country to let his family see them for a few months, which is ok since I've been there three times and loved it every time. I had the first nightmare and in it she was molested, and I grabbed some sort of stick and beat the man to a pulp. In the second one, she seems to be chasing after her father crying hysterically because he's leaving her alone in a place where no people are and she wants to be with her daddy instead of alone, abandoned. I am already having anxiety about them going, but know my former father in law is a great person and so are my former in laws. I just keep having nightmares concerning her, and that's just not like me. I'm not one to have nightmares and keep going over them, but these two are bothering the mess out of me. Any ideas?