Dreams of cheating?

What does it mean if my boyfriend has consistent dreams of cheating on me?

Edit: I probably should mention why this even worries me. We’ve been going through a rough time recently and there has been a big lack of communication. He always seems distant and irritated by small things and it causes a lot of arguments. I’m not one to assume anything is going on but I have a past with being cheated on and sometimes it’s hard not to think the worst of things. I know dreams usually don’t mean anything but he has a lot of dreams like this and it just gets to me sometimes.