Is it normal that i get a little depressed when..

..I think about how my fictional character crushes will not become something real? I tend to fall hard for certain fictional characters. Whether it's from books, movies, or especially movie adaptations of books (the two versions of the character sometimes blend into a very intriguing person Lol) I can really fall for him.

Sometimes I spend time thinking about the kind of conversations, arguments, conflicts, and life we would have together. Basically of an actual relationship. Haha. Anyway, when I do so, I then realize its not a reality and it really makes me sad. In my previously relationships, I haven't felt the same passion for the guy as I would for a fictional character. I'm not necessarily looking for the exact characters, but at least someone that intrigues me just as much. I get genuinely sad when I think that I may never have that kind of feeling for anybody. Is this normal?