Recurring dream character

I used to dream about this girl, completely made up in my mind as far as i can tell, about once a week maybe less sometimes. I had a relationship with this girl in the dreams. I dreamt about her last night for the first time in a very long time. We were supposed to meet somewhere and I somehow got sidetracked to an airport or bus station something like that and it was pretty ridiculous that this would happen. I tried calling her to let her know that I was going to be late and that I'm sorry. She didn't answer. Than I called her again and she changed her voicemail to leave me a message and It was actually pretty lengthy explaining our relationship and she said at the end something like "You keep me waiting all the time. Let's see how you like it." And music starts playing on the phone and I know that I have to listen to the music till its stops playing and she answers me. I was waiting and holding on to the phone tight in my dream and than I woke up. And It probably sounds weird but it has affected me emotionally and I feel an intense attachment to this dream person. When I woke up I was scared to lose this dream character. And this is why I want to understand what it means.

It made me wonder if it is possible for us to see other realities or to exist in another reality when we dream.

Also, to maybe build some context here i currently have a girlfriend and 2 children. I honestly have no feeling towards an ex or anything like that. I am leaving the country in the next 2 weeks without them though and I wonder if that has something to do with the airport/bus station. But it doesn't explain the recurring character. That interests me a lot.

Wow that's pretty deep. Maybe when you have lucids, you should find the girl and control her a bit more?