Dreams?

My boyfriend told me he's been having dreams lately of me cheating on him or breaking up and not talking to him. I think he's just getting worried because I started school at our community college and he thinks I'm going to find someone else. And his dreams aren't helping him. And he's kind of questioned me because yesterday I was gone all day and took off in a hurry today, but I wasn't doing anything besides school&shopoing. I feel bad because I've been having dreams to like sex dreams with another guy I use to see. But I've also been having sex dreams about my boyfriend and having dreams about me taking a positve pregnancy test with him. I told him that in hopes he'd feel better and told him he should know I'd never cheat on him and I only want him. I know he believes it to, and he really has never had these issues. I just feel bad and wish he didn't feel that way because I love him to death and I do only want him!