Long distance relationshp

Well, I didn't expect to like a girl that I got to know during the Nippon Jamboree. It was really unexpected and a weird way of how I got to know her.

Would it be good to have a long distance relationship? Will it be tough to build up and strengthen the relationship? I did not had a chance to speak to her for quite some time and I am already feeling uneasy. I've been thinking of her and hoping that she will get back to me soon.