Is it normal to dream about a long lost friend?

Basically my dad was friends with her dad, and our families went on many vacations together over the years. Eventually her parents had some kind of argument with my parents and we stopped visiting each other. This happened several years ago and she was around 13 then. I am 8 years older than her and she would be 18 now. Recently I had a dream where me and her were in a hotel room, she was every bit grown as she would be if I saw her today, we were standing in front of a mirror, I was standing behind her, both of us looking into the mirror, into each other's eyes, we were both fully clothed, she was wearing a white tank top and short jeans, and the crotch area of my pants came just right up to her butt. I was wrapping my arms across her waist, and she was holding my hands tight. I could feel her heart beating in her chest. And that terrible thought hit me, like it had 5 years ago, about us never seeing each other again, and we were embracing like this because we both knew this was our final goodbye. I woke up with the sad feeling in my heart that it had to end like this, I wish I could stay in my dream just to see what would have happened next. And I just had this intense desire to touch and feel her and make her feel good.