Relationships are a very intimate bond between two people. When someone feels that feeling of attraction towards another, it really is a strong thing. Not only does it require that mutual attraction, but it requires an insane amount of dedication both emotionally and physically. In person, relationships are very complex, but long distance can be even more difficult. Especially if you haven't met that person face to face. Not only do you both lack the real physical attraction to each other that a normal relationship has, you lack the understanding of each other, as well as the ability to truly get to know one another.